Sanford, N.C. — A wreck in Lee County caused traffic delays on U.S. Highway 1 near the intersection of N.C. Highway 78 Tuesday morning.

At about 11:30 p.m. Monday, a tractor-trailer and street-sweeper collided near Pendergrass Road. The accident caused traffic on northbound lanes of U.S. Highway 1 to halt.

The street-sweeper also blocked southbound lanes of U.S. Highway 1 for a while.

Street-sweeper driver Daniel Lett, 21, and passenger Matthew Gates, 23, were transported by helicopter to UNC Hospitals. Paramedics reported finding the two men dozens of feet from the street-sweeper, apparently ejected by the force of the crash.

According to a family member, Lett was in critical but stable condition Tuesday afternoon. Gates is in good condition.

Tractor-trailer driver Travis Scott, 31, of Candor, was taken to the hospital by his wife. His injuries were considered not life-threatening.

Charges are pending against Lett, troopers said.