21 people injured after motorcycle crash in Fort Worth, fire officials say

FORT WORTH, Texas (KTRK) -- Twenty-one people are injured after a major crash involving several motorcycles on Friday night.

Firefighters say the bikers were riding on Interstate-35W when one blew a tire, triggering a chain-reaction crash.

Fire officials say four people are in critical condition, and seven others also went to the hospital.

Firefighters also say several motorcycles caught on fire as a result of the crash.