Pentagon's John Kirby says latest airstrike indicates Russian forces are 'broadening their target sets'

Pentagon press secretary John Kirby said Russian forces are "broadening their target sets."

Pentagon press secretary John Kirby said Russian forces are "broadening their target sets" after rockets hit a Ukrainian military base near the Polish border overnight.

"Look, this is the third now military facility or airfield that the Russians had struck in western Ukraine in just the last couple of days," Kirby told ABC "This Week" co-anchor Martha Raddatz, on Sunday. "So, clearly, at least from an airstrike perspective, they're broadening their target sets."

The Yavoriv International Center for Peacekeeping and Security, located about 10 miles from Poland and an hour west of Lviv, sustained damage from the airstrike. Lviv Gov. Maksym Kozytskiy said at least 35 people were killed and another 134 injured during the attack on the Ukrainian military training base. Kirby confirmed no Americans were present.

Raddatz followed up, citing Ukraine's defense minister calling the strike "a terror attack near the NATO border" and "saying action must be taken to stop this, close the sky."