A woman was killed Sunday night in Prince George’s County when a car went off Route 1 and into a creek, the county police said.

The single-car crash occurred about 8 p.m. near Wells Parkway in the University Park area, said Nicole Hubbard, a police spokeswoman.

Two other adults and one child were in the car when it left the northbound lanes of the road, Hubbard said.

No names were available immediately, and the cause was not known.

Route 1 was closed in the area of the crash, which is about one mile south of the University of Maryland campus.