Lincoln Tunnel is set to reopen Monday after a man was killed in an apparent crash.

Officials say the crash happened around 1 p.m.

Sunday.

The cause is under investigation.

The Lincoln Tunnel reopened Monday, but with the closure of the Lincoln Tunnel, the Lincoln Memorial and the Washington Monument.

It will remain closed until Monday morning.

The park is the only tunnel that connects Washington, D.C., and the nation’s capital.

The tunnel opened in 1883.