Ukraine shoots down Russian Su-25 aircraft in Donetsk Oblast, Zelensky says.

Editor's note: This is a developing story and is being updated.

Soldiers of Ukraine's 110th Separate Mechanized Brigade shot down a Russian Su-25 fighter jet in Donetsk Oblast on May 4, President Volodymyr Zelensky said in his evening address.

The Su-25 is used to provide close air support for Russian troops on the ground.

"Well done. I thank all our soldiers at the front in combat missions at combat posts," Zelensky said.

Russia used eight missiles of various types against Ukraine and dropped nearly 70 guided aerial bombs on border settlements and positions at the front within a day, according to the president.

Russia's total losses during the all-out war amount to about 673 aircraft — 348 planes and 325 helicopters, according to Ukraine's General Staff.

The General Staff's figure could not be independently verified.