Engineers are currently at the scene of an “emergency” on a main road in Chalfont St Giles, which is causing traffic chaos across south Bucks.

Transport for Bucks tweeted an hour ago to say Affinity Water were attending an emergency on the A413, near Kings Road.

The details of the incident have not yet been released by the authorities, but work is understood to be ongoing.

It is causing huge delays in the area, with transport bosses telling motorists to avoid the area if possible.

More as we get it.