A serious accident was miraculously avoided after the low-loader containing a large digger broke free from the lorry and landed in the middle of the busy road close to the Dry Arch roundabout.
There are now serious traffic disruptions as workmen attempt to get the low-loader back onto the lorry.
An eye-witness told Donegaldaily.com “It was a miracle nobody was hurt. The low-loader just seemed to break free from the lorry and plonked itself in the middle of the road.
“If there had been motorists close behind then they would have smashed into the back of the low-loader because nobody knew what was happening,” he said.
It is believed another car pulled out in front of the lorry.
The Gardai have arrived at the scene and are now directing traffic around the incident.