Man shot in head while group of people record video outside a gas station

HOUSTON, Texas -- A video shoot turned into a shooting in northeast Houston.

It happened around 11 p.m. Wednesday outside a Valero gas station.

Police said a group of people were recording some sort of video when they got into an argument with another group of people.

Someone pulled out a gun and shot a man in the head. He's in critical condition.

Police have not made any arrests.

Investigators are trying to find out if the gas station may have captured it on its surveillance video.