A car fire on the A419 near Cricklade's recycling centre is affecting traffic leaving Swindon heading towards Cirencester.
Traffic is building on the A419 northbound which will mean delays for drivers during rush hour.
Police are diverting traffic from junction 15 of the M4 heading onto the A419 to junction 16.
Emergency repairs are ongoing.
One lane out of two is closed because of the fire near Kingshill Recycling Centre.
Comments: Our rules
We want our comments to be a lively and valuable part of our community - a place where readers can debate and engage with the most important local issues. The ability to comment on our stories is a privilege, not a right, however, and that privilege may be withdrawn if it is abused or misused.
Please report any comments that break our rules.
Read the rules here