Hot air balloon hits power lines in Mass.

CLINTON, Massachusetts (NEWSCHANNEL 3) - An investigation is underway into what caused a hot air balloon to strike power lines and crash in Clinton, Massachusetts Saturday night.

According to one witness, the balloon tried to ascend over the power lines, but instead it hit the lines and caught fire.

At least five of the six people on board suffered burns of various degrees.

The Federal Aviation Administration is now investigating.