WASHINGTON — Seven people, including four D.C. firefighters were hurt after a serious accident between a firetruck and a van Wednesday morning near Capitol Hill.

The crash happened around 9:40 a.m. at 11th Street and Maryland Avenue Northeast.

It was initially reported as a crash with a Metro Access van because the van used to be owned by Metro. It is now used by Salara LLC.

D.C. Fire and EMS spokesman Tim Wilson says firetruck No. 10 was responding to a call for a gas leak when the collision happened.

Wilson says four D.C. firefighters were hurt, one of them seriously. The other firefighters have minor injuries.

Three people in the van were also hurt. Two of them have critical injuries and one has serious injuries.

D.C. police are investigating the crash.