UPDATE (6 p.m.)—An accident that occurred about 5 p.m. has closed one lane Maryland Route 22 at Thomas Run Road.
One person is being flown to Johns Hopkins Children's Center.
A dispatcher for the Maryland State Police said the road will remain closed briefly so that "fire equipment" can access the scene. He added that traffic is "crawling by" as of 6 p.m.
No other details were available.