Two men were killed and at least seven others wounded during the filming of a rap music video on Friday night near Houston, officials said.

The filming was being done in a parking lot of an office park at about 9:30 p.m. in the 500 block of Smart Street in Harris County just north of Houston when shots were fired, Sheriff Ed Gonzalez said.

“Basically they were ambushed, we believe by individuals in cars and or foot,” Sheriff Gonzalez said at a news conference. “We don’t know if there was a beef going on or what exactly happened.”

Two were dead at the scene and others were taken to hospitals. One victim was in critical condition, Sheriff Gonzalez said on Saturday morning.