All lanes of I-285 eastbound re-opened around 2 p.m. Monday, hours after a tractor-trailer fire shut down the interstate during the morning commute.

The flatbed truck caught fire in the right emergency lane of I-285 near Riverside Drive just before 9 a.m.

All eastbound lanes remained blocked until 9:30, when one lane was reopened. A second lane had reopened by 9:45, but not before eastbound traffic backed up about 9 miles, to South Cobb Drive.

At one point, police were diverting traffic off the interstate at the Power Ferry Road exit. Authorities had three lanes open at 10:45, but two remained lanes remained closed.

Those two right lanes remained closed at noon, and the state Department of Transportation predicted it would be 5 p.m. before the wreckage is cleared and all lanes reopened. The lanes were opened about three hours ahead of that prediction.

Traffic was also backed up on I-75 southbound at noon, as motorists tried to exit onto I-285 east.

No westbound lanes were affected, but rubbernecking led to a westbound backup that at one point stretched to beyond Ga. 400.

There were no immediate reports of injuries.