Two accidents late Monday in Lebanon sent two teenagers to the hospital.

The first crash was reported about 7:30 p.m. A vehicle had gone off the road and landed in a swamp off Route 11/202. The driver, a 17-year-old boy from Acton, was standing on the roof when police arrived.

“I could see the back end of the SUV was submerged in about 3-feet-deep water and the male operator was out of the vehicle,” Lebanon Assistant Fire Chief Jason Cole said in a prepared statement. “He claimed he was just shook up and not injured.”

The teenager told police that he probably fell asleep.

Not long after rescue crews left that crash, an accident was reported on Lower Guinea Road. A vehicle had rolled over and two people were trapped inside.

Maine State Police Trooper David Coflesky arrived first and kicked out a window in the vehicle to help free the two passengers.

“The Nissan Sentra was traveling westbound on Lower Guinea Road when for an unknown reason it left the roadway and struck a telephone pole and then rolled over,” Cole said in a prepared statement. “The telephone pole was broken during the collision and the vehicle was totaled.”

The driver and passenger, both 16-year-old girls from Lebanon, were taken by ambulance to Frisbie Memorial Hospital in nearby Rochester, N.H. Their injuries were serious but not life-threatening, Cole said.

Both accidents are still under investigation by the state police.