Kaniva News reported that the road roller overturned and fell into the sea at Vaipua Bridge in Neiafu Wednesday morning.
The driver was unharmed.
Questions have emerged about whether the driver, who was sent from Tongatapu by the Ministry to operate the road roller, was familiar with the area’s steep roads.
Neiafu Town Officer Vāvā Lapota said there were also allegations the roller’s brakes were unsafe.
He said about nine Ministry employees, including the driver, arrived from Tongatapu on Tuesday.