(BROWNSVILLE) Seven people have died and at least six have been injured after being hit by a vehicle while waiting at a bus stop, police in Brownsville, Texas said Sunday.

Brownsville police investigator Martin Sandoval said the crash happened around 8:30 a.m. Sunday at a bus stop near a migrant shelter in the border town.

The causes of the accident are not yet clear to the authorities.

More details will follow.