Abigail Oyediran and Trenton Musgrove are believed to be together and were last known to have left on a train from Aylesford. They boarded the train at around 9.15am on Monday 1 July on a service heading to Strood.

Abigail, 13, is black, with braided hair and wears glasses. She was last seen in black cycling shorts, a black Zavetti puffer coat, white Nike trainers, a white school top, and was carrying a red drawstring bag.

Trenton is 14, white, with curly brown hair, which is short on the sides. He was wearing a school jumper with a white horse logo, black trousers and black loafer shoes. He was carrying a black bag.

There are concerns for both children’s welfare and anyone with information on their whereabouts should call 999, quoting reference 01-0335.