HOUSTON -- A violent rash of overnight carjackings has officials on alert.

Harris County deputies say four different drivers were targeted right after each other.

The incidents, they say, occurred within several miles of each other.

The first incident took place late Tuesday night on Bammel North Houston Road.

Another happened at a mobile home park on Greens Road.

Deputies are looking for two men.

They say the suspects are wearing hoodies and carried shotguns and handguns.