M4 closed between Junction 15 and Junction 16 due to 'ongoing incident'

The M4 in Wiltshire is closed due to an "ongoing incident".

The motorway is closed in both directions between Junction 15 in Marlborough and Junction 16 in Swindon, Wiltshire Police has said in a tweet today (5 December).

The road is expected to remain closed throughout the morning.

Traffic alerts can be found on the National Highways website.

Updates to follow...