No one was injured after a BoltBus caught fire and exploded on its way from New York City to Boston, Mass.

The fire, which was caught on camera, broke out Monday on the Massachusetts Turnpike just outside of Boston.

A driver from another car alerted the bus driver of the fire in the back of the bus. All 47 passengers safely evacuated, and the bus exploded moments later.

Authorities had to close parts of the highway for hours.

The cause of the fire is under investigation.

Read more from the Boston Globe:

The bus, which was on its way from New York to Boston, made an unscheduled stop at a rest area in Southington, Conn., Greyhound spokeswoman Lanesha Gipson said in a phone interview Tuesday. She said the cause of the stop was under investigation and no other stops were made.

The bus driver — a 47-year-old woman from Newark, N.J. — is not being charged at this time, State Police spokesman Dave Procopio said Tuesday.

“Troopers from the State Police and the office of the state fire marshall today will continue to inspect the bus to determine the cause and point of origin of the fire,” Procopio said in a statement.

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