As reported by Censor.NET, this was announced by the ATO HQ press center on Facebook.
The HQ reported of casualties incurred by the ATO forces yesterday.
"At around 6 p.m. in Novotoshkivske area, three our servicemen were killed, three wounded in an explosion of an unidentified device."
The ATO HQ press center also said that the total casualty toll for July 19 is four Ukrainian fighters killed, three wounded.
On July 18, pro-Russian invaders opened fire upon Ukrainian positions 23 times.