A tractor-trailer, bursting into flames, causing major backups Friday on I-81, as crews worked feverishly to put out the blaze.

According to emergency dispatch, the incident first happened at around 6:43 a.m. on I-81 between exit 24 and exit 20.

Officials say the situation caused a lane restriction that brought traffic to a screeching halt.

A happy ending to the story however, as crews say the driver was left uninjured after the spontaneous flames.

PennDOT says all lanes on the highway have now officially been opened and that traffic should flow as usual.