Trains to St Albans and Radlett could be delayed this evening.

A safety inspection was carried out on the line between Mill Hill Broadway and Radlett this afternoon.

As a result, trains to Radlett and the Thameslink service to St Albans could be delayed by up to 15 minutes.

Services going towards St Pancras International are also having to run at a reduced speed.

The disruption is expected to clear by 6.30pm.