Concern is growing for two Hemel Hempstead teenagers who went missing yesterday.

Kai and Ruth, both 17, were last seen leaving the town by train at 7.10pm on Friday, January 19, heading in the direction of London.

Officers are growing increasingly concerned for their welfare.

If you have any information on their whereabouts, call the non-emergency number 101. If you have seen them in the last few moments or are with them now, call 999 immediately.