Bus passengers faced delays and cancellations across Uno Bus' network this morning (Tuesday, January 30) due to "various factors".

A mechanical fault has caused cancellations on the 635 route, including the 6.45am bus from Hatfield's Forum to Watford Hospital and the 8.04am bus from Watford Hospital to Hatfield Business Park.

Meanwhile, the 7.10am 644 service from Hatfield to Queensbury has also been cancelled.

Delays of up to 21 minutes are being experienced across Uno Bus' network due to a number of factors.

A spokesperson for Uno Bus said: "Delays across network. (Buses are) up to 21 minutes late, running due to various factors such as diversions, temporary lights and train strikes.

"We apologise for any inconvenience this may cause."

Meanwhile, in St Albans, stops between St Peter's Street and London Road will not be served by the 602 due to a diversion.