Is­raeli fight­er jets hit tar­gets in the Gaza Strip min­utes af­ter a week­long truce ex­pired on Fri­day, as the war with Hamas re­sumed in full force. Black smoke bil­lowed from the be­sieged ter­ri­to­ry, and Is­rael dropped leaflets over parts of south­ern Gaza urg­ing peo­ple to leave their homes, sug­gest­ing it was prepar­ing to widen its of­fen­sive.

In Is­rael, sirens warn­ing of in­com­ing rock­ets blared at sev­er­al com­mu­nal farms near Gaza, a sign that mil­i­tants al­so restart­ed at­tacks, but there were no re­ports of hits. The re­newed hos­til­i­ties height­ened con­cerns for Pales­tini­ans in the tiny coastal en­clave as well as about 140 hostages who re­main there, af­ter more than 100 were freed dur­ing the truce.

Qatar, which has served as a me­di­a­tor along with Egypt, said ne­go­tia­tors were still try­ing to reach an agree­ment on restart­ing the cease-fire. Qatar’s For­eign Min­istry sin­gled out Is­rael’s role in the re­sump­tion of fight­ing and said it “com­pli­cates me­di­a­tion ef­forts and ex­ac­er­bates the hu­man­i­tar­i­an cat­a­stro­phe.”

A day ear­li­er, U.S. Sec­re­tary of State Antony Blinken met with Is­raeli of­fi­cials and urged them to do more to pro­tect Pales­tin­ian civil­ians as they seek to de­stroy Hamas. Blinken ar­rived Fri­day at the COP28 cli­mate talks in Dubai, where he was to meet with Arab for­eign min­is­ters and oth­er of­fi­cials.

Is­rael’s re­tal­i­a­tion for Hamas’ dead­ly Oct. 7 raid has killed thou­sands of Pales­tini­ans dead, up­root­ed most of Gaza’s 2.3 mil­lion peo­ple and led to a hu­man­i­tar­i­an cri­sis. Hun­dreds of thou­sands of dis­placed peo­ple are now crammed in­to the ter­ri­to­ry’s south with no ex­it, rais­ing ques­tions over how any Is­raeli of­fen­sive there could avoid heavy civil­ian ca­su­al­ties.

It was not clear to what ex­tent Is­raeli Prime Min­is­ter Ben­jamin Ne­tanyahu will heed the ap­peals of the Unit­ed States, Is­rael’s most im­por­tant al­ly. Ne­tanyahu’s of­fice said Fri­day that Is­rael “is com­mit­ted to achiev­ing the goals of the war: re­leas­ing the hostages, elim­i­nat­ing Hamas and en­sur­ing that Gaza nev­er again con­sti­tutes a threat to the res­i­dents of Is­rael.”

On­ly hours in to the re­newed of­fen­sive, the Health Min­istry of Hamas-con­trolled Gaza said 32 peo­ple had been killed and dozens wound­ed.

In the leaflets it dropped in south­ern Gaza, Is­rael urged peo­ple to leave homes east of Khan You­nis, warn­ing that the south­ern town was now a “dan­ger­ous bat­tle zone.” Oth­er leaflets warned res­i­dents of sev­er­al neigh­bor­hoods in Gaza City in the north to move south.

The Is­raeli mil­i­tary al­so re­leased a map carv­ing up the Gaza Strip in­to hun­dreds of num­bered parcels, and asked res­i­dents to learn the num­ber as­so­ci­at­ed with their lo­ca­tion in case of an even­tu­al evac­u­a­tion. It was not im­me­di­ate­ly clear how Pales­tini­ans would be up­dat­ed on calls for evac­u­a­tion.

Hun­dreds of thou­sands of peo­ple fled north­ern Gaza ear­li­er in the war, in an ex­tra­or­di­nary mass ex­o­dus that saw many take shel­ter in Khan You­nis and oth­er places in the south.

One of the first airstrikes Fri­day de­stroyed a large build­ing in Khan You­nis. Mo­ments lat­er, res­i­dents were seen fran­ti­cal­ly search­ing the rub­ble for sur­vivors as medics ap­proached. One wound­ed per­son was car­ried away on a stretch­er.

In Hamad City, a Qatari-fund­ed hous­ing de­vel­op­ment near the city, a strike hit an apart­ment in a mul­ti-sto­ry res­i­den­tial build­ing, while oth­er parts of the build­ing ap­peared large­ly in­tact.

Else­where, a strike hit a home near Gaza City in the north, and in the refugee camp of Mag­hazi, in cen­tral Gaza, res­cuers clawed through the rub­ble of a large build­ing hit by war­planes. A foot stuck out of the tan­gle of con­crete and wiring.

Is­rael has said it is tar­get­ing Hamas op­er­a­tives and blames civil­ian ca­su­al­ties on the group, ac­cus­ing the mil­i­tants of op­er­at­ing in res­i­den­tial neigh­bor­hoods. Since the war erupt­ed Oct. 7, in re­sponse to a dead­ly Hamas at­tack on south­ern Is­rael, many of those killed in Is­raeli bom­bard­ments have been women and chil­dren.

In Is­rael, white smoke trails could be seen in the skies over Sderot on the bor­der with north­ern Gaza af­ter Is­rael’s mis­sile pro­tec­tion sys­tems ac­ti­vat­ed.

Ne­tanyahu said the war re­sumed be­cause Hamas had vi­o­lat­ed the terms of the truce. “It has not met its oblig­a­tion to re­lease all of the women hostages to­day and has launched rock­ets at Is­raeli cit­i­zens,” he said in a state­ment.

Hamas blamed Is­rael for the end of the truce, say­ing in a state­ment that it had re­ject­ed all of­fers Hamas made to re­lease more hostages and bod­ies of the dead.

The Is­raeli mil­i­tary’s an­nounce­ment of the re­sump­tion of strikes came on­ly 30 min­utes af­ter the cease-fire, which be­gan Nov. 24, ex­pired ear­ly Fri­day.

Dur­ing the week­long truce, Hamas and oth­er mil­i­tants in Gaza re­leased more than 100 hostages, most of them Is­raelis, in re­turn for 240 Pales­tini­ans freed from pris­ons in Is­rael.

Vir­tu­al­ly all of those freed were women and chil­dren, but the fact that few such hostages now re­main in Gaza made it hard to reach a deal to ex­tend the cease-fire.

Hamas, a mil­i­tant group that has ruled Gaza for 16 years, had been ex­pect­ed to set a high­er price for the re­main­ing hostages, es­pe­cial­ly Is­raeli sol­diers.

Ne­tanyahu has been un­der in­tense pres­sure from fam­i­lies of the hostages to bring them home. But his far-right gov­ern­ing part­ners have al­so pushed him to con­tin­ue the war un­til Hamas is de­stroyed, and could aban­don his coali­tion if he is seen as mak­ing too many con­ces­sions.

A to­tal of 83 Is­raelis, in­clud­ing dual na­tion­als, were freed dur­ing the truce, most of whom ap­peared phys­i­cal­ly well but shak­en. An­oth­er 24 hostages — 23 Thais and one Fil­ipino — were al­so re­leased, in­clud­ing sev­er­al men.

The 240 Pales­tini­ans re­leased were most­ly teenagers ac­cused of throw­ing stones and fire­bombs dur­ing con­fronta­tions with Is­raeli forces. Sev­er­al were women who were con­vict­ed by mil­i­tary courts of at­tempt­ing to at­tack sol­diers.

In its Oct. 7 at­tack on Is­rael, Hamas and oth­er Pales­tin­ian mil­i­tants killed about 1,200 peo­ple, most­ly civil­ians, and took around 240 peo­ple cap­tive.

Since then, Is­rael’s bom­bard­ment and in­va­sion in Gaza have killed more than 13,300 Pales­tini­ans, rough­ly two-thirds of them women and mi­nors, ac­cord­ing to Gaza’s Health Min­istry, which does not dif­fer­en­ti­ate be­tween civil­ians and com­bat­ants.

The toll is like­ly much high­er, as of­fi­cials have on­ly spo­rad­i­cal­ly up­dat­ed the count since Nov. 11. The min­istry says thou­sands more peo­ple are feared dead un­der the rub­ble.

Is­rael says 77 of its sol­diers have been killed in the ground of­fen­sive. It claims to have killed thou­sands of mil­i­tants, with­out pro­vid­ing ev­i­dence.

Mroue re­port­ed from Beirut and Frankel from Jerusalem. As­so­ci­at­ed Press writ­ers David Ris­ing in Bangkok and Matthew Lee in Dubai, Unit­ed Arab Emi­rates, con­tributed.

DEIR AL-BAL­AH, Gaza Strip (AP) —