This was reported by the General Staff of the Armed Forces of Ukraine on Facebook, according to Ukrinform.
In addition, Russian forces have lost: 10,833 (+1) tanks, 22,562 (+5) armored fighting vehicles, 28,009 (+29) artillery systems, 1,387 (+0) MLRS, 1,167 (+0) air defense systems, 372 (+0) aircraft, 336 (+0) helicopters, 36,503 (+118) operational-tactical UAVs, 3,197 (+0) cruise missiles, 28 (+0) warships / boats, one (+0) submarine, 48,988 (+88) vehicles and fuel tankers, 3,892 (+0) units of special equipment.
Ukrinform previously reported that as of 22:00 on May 18, there were 130 combat engagements with Russian invaders along the frontline.