The A2 has been shut near Dartford Heath following a crash involving a motorbike. Traffic is temporarily being held coastbound while emergency services attend the incident between Bexley and Junction 2 for the Darenth Interchange. Long queues are also forming on the M25 due to the crash. One lane is closed and there is slow moving traffic on the anticlockwise carriageway near Darenth. National Highways says its traffic officers are at the scene. Police and the ambulance service have been approached for more information. Traffic is also currently being held in both directions on the A2 Jubilee …