Update 2:20 p.m.- Route 3 southbound is now open in Bedford, according to the BPD twitter page.
Update 12:33 p.m.- The truck fire occured approximately one hour ago, according to Detective Lieutenant Scott Jones of the Bedford Police Department.
The truck was on Route 3 southbound, just south of exit 26 in Burlington, according to the BPD twitter account. State Police were on the scene.
Route 3 was closed at exit 26 southbound, according to the BPD twitter page.
Original Post-A dump truck carrying hay had its cargo catch fire on Route 3 southbound at Route 62, according to scanner reports.
The truck was also pulling a trailer full of hay, but the hay in the dump truck caught fire. Bedford, Billerica and Burlington Police all responded.
Stick with Bedford Patch for updates as they become available.