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Stephen Mulhern and Emma Willis 9am - 12pm
30 January 2014, 12:22
Northbound M1 at J5 Watford expected to be closed until this evening.
Heart's been told the M1 northbound between junctions 5 for Watford is expected to be closed several hours.
There is a serious police investigation going there.
Police received a number of calls from drivers concerned about two people on a bridge at around 10:15am this morning.
The southbound stretch has now been reopened.
Drivers northbound are being diverted off at exit 5.
Police are urging motorists to avoid the area due to long delays.
'The M1 in Hertfordshire is closed northbound between junctions J5 (Watford) and J6 (St Albans), due to a serious incident. A signed diversion is in operation for northbound traffic which should exit at J5 and follow the "yellow triangle" symbol using the A41 eastbound and the A405 northbound to rejoin the M1 at J6.'