A crash involving a minivan shut down southbound Interstate 270 in Clarksburg, Maryland, for just over 3 1/2 hours early Friday.

Because of the crash, traffic was diverted to Md. 109 in Hyattstown.

Montgomery County Fire & Rescue spokesman Pete Piringer tweeted that someone was ejected from the minivan.

A total of four people, including several children, were taken to the hospital after the 2:50 a.m. crash, he said.

The highway reopened around 6:32 a.m.

Maryland State Police are investigating what happened.