Rus­sia’s south­ern Bel­go­rod re­gion bor­der­ing Ukraine came un­der at­tack from Ukrain­ian ar­tillery fire, mor­tar shells and drones Fri­day, au­thor­i­ties said, hours af­ter two drones struck a Russ­ian city in a re­gion next to the an­nexed Crimea Penin­su­la.

The Krem­lin’s forces, mean­while, struck a clin­ic in Dnipro, in cen­tral Ukraine, killing two peo­ple and wound­ing an­oth­er 23, in­clud­ing two chil­dren, Ukrain­ian of­fi­cials said. Al­so, a Russ­ian S-300 mis­sile hit a dam in the Kar­liv­ka dis­trict of Ukraine’s east­ern Donet­sk province, plac­ing near­by set­tle­ments un­der threat of se­vere flood­ing.

The Bel­go­rod town of Graiv­o­ron, about sev­en kilo­me­tres (more than four miles) from the Ukrain­ian bor­der, was un­der fire for sev­er­al hours, with four hous­es, a store, a car, a gas pipeline and a pow­er line dam­aged, Gov. Vy­ach­eslav Glad­kov re­port­ed.

Clos­er to the bor­der, a recre­ation cen­tre, a shop and an un­in­hab­it­ed house sus­tained dam­age in the vil­lage of Glo­to­vo. One woman was wound­ed when the near­by vil­lage of No­vaya Tavolzhanka was shelled, ac­cord­ing to Glad­kov.

Ear­li­er this week, the Bel­go­rod re­gion was the tar­get of one of the most se­ri­ous cross-bor­der at­tacks from Ukraine since the war be­gan 15 months ago. De­tails of the raid were murky. Rus­sia blamed the Ukrain­ian armed forces, but two Russ­ian groups said they were in­volved, with the aim of bring­ing down Russ­ian Pres­i­dent Vladimir Putin.

Of­fi­cials in Rus­sia’s south­ern city of Krasnodar, in the re­gion of the same name bor­der­ing Crimea, said that two drones struck there. Wit­ness­es told lo­cal me­dia they heard some­thing like the sound of a moped and then two ex­plo­sions.

The blasts smashed a hole in the roof of a build­ing and blew out win­dows in an apart­ment build­ing.

“We just went to bed and then there was such a strong ter­ri­ble boom,” res­i­dent Ta­tiana Sa­fono­va said. “We ran out­side, there were peo­ple run­ning, but noth­ing else was go­ing on.”

She said, “there was a spe­cif­ic sound be­fore­hand, like a growl­ing noisy moped dri­ving by.”

“There is dam­age to build­ings, but es­sen­tial in­fra­struc­ture was not dam­aged. And most im­por­tant­ly, there were no ca­su­al­ties,” Krasnodar re­gion­al Gov. Ve­ni­amin Kon­dratyev wrote on Telegram.

Krasnodar May­or Yevge­ny Nau­mov said a res­i­den­tial build­ing and an of­fice build­ing were dam­aged, but there were no ca­su­al­ties.

Drone at­tacks against Russ­ian re­gions on the bor­der with Ukraine have been a reg­u­lar oc­cur­rence since the start of Rus­sia’s full-scale in­va­sion of Ukraine in Feb­ru­ary last year, with at­tacks step­ping up last month.

Ear­li­er this month, an oil re­fin­ery in Krasnodar was at­tacked by drones on two con­sec­u­tive days.

In an­oth­er ap­par­ent in­ci­dent of Kyiv’s forces ha­rass­ing Rus­sia, Ukraine’s de­fence min­istry on Thurs­day pub­lished footage that ap­peared to show an un­manned drone boat at­tack­ing Rus­sia’s Ivan Khurs re­con­nais­sance ship in the Black Sea.

The video didn’t show the drone hit­ting the ship.

The video fol­lowed re­ports by Rus­sia’s Min­istry of De­fense on Wednes­day that Ukraine had launched an “un­suc­cess­ful” at­tack on the Ivan Khurs us­ing three un­manned speed­boats, with all three boats at­tacked and de­stroyed pri­or to reach­ing the ship. Moscow re­leased footage al­leged­ly show­ing the de­struc­tion of one of the un­crewed boats.

At least two civil­ians were killed and three oth­ers wound­ed in Russ­ian at­tacks on Ukraine over the pre­vi­ous 24 hours, the Ukrain­ian pres­i­dent’s of­fice re­port­ed Fri­day.

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Yuras Kar­manau in Tallinn, Es­to­nia, and Elise Mor­ton in Lon­don, con­tributed to this re­port.

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KYIV, Ukraine (AP) —