UPDATE: All lanes of southbound U.S. 29 in Greensboro have reopened.
GREENSBORO, N.C. -- Crews are investigating four crashes on southbound U.S. 29 in Greensboro.
One crash with injuries happened between Gate City Boulevard and Tuscaloosa Street.
The second wreck happened at North Booker Street. Police say the crash also includes injuries.
The third incident happened near Market Street at mile marker 130. All lane are closed.
The fourth crash happened near Wendover Avenue at mile marker 131. One lane is closed.
The severity of the injuries is currently unknown.
Additional information is not available.