A Ukrainian army vehicle was blasted on a bridge in Schastia, Luhansk region, at about 10 a.m. on Sunday, the PR section of the regional department of the Interior Ministry reports.

"Early reports indicate that four Ukrainian servicemen of the independent motorized brigade No.92 were killed," a posting on the Interior Ministry website says.

It has been tentatively established that as the vehicle was crossing the bridge it was hit by a guided anti-tank projectile.