Updated at 10:53 a.m.

Two of three lanes along Rockville Pike southbound have reopened after an earlier crash that left at least seven people injured. One lane remained blocked.

The crash involved several vehicles, including a landscaping truck, officials said. Seven people were taken to area hospitals and some had trauma-related injuries.

About four miles south of that crash, another accident took place just a short time later along Old Georgetown Road south near Huntington Parkway in Bethesda. There were some injuries in that incident as well but it was not immediately clear if any of them were serious.

Original post at 10:10 a.m.

At least seven people were injured in a crash that closed part of southbound Rockville Pike near Old Georgetown Road in Montgomery County.

The accident happened near Strathmore Avenue and involved three vehicles, according to Pete Piringer, a spokesman for Montgomery County Fire.

The crash damaged a traffic light and utility pole in the area, according to authorities, and delays are building. Drivers should avoid the area.

At least seven people were transported to area hospitals, he said. Of those, four had trauma-related injuries, according to a Twitter message from Piringer. At one point, some people were trapped in vehicles but were rescued, he said. A landscaping truck was one of the vehicles involved in the crash.