Daisy Organ, head of the Child Abduction Section at the FCO, has told Daybreak that for parents whose children have been abducted to countries that are not members of the Hague Convention "face a long and distressing process to get them back."
More top news
Five people have been killed and 40 injured after a car and knife attack in London on Wednesday.
A wet, wintry night in places with rain and hill snow slow to move away from southern Scotland and northern England.
The Westminster terror attack dominates the front pages of Thursday's newspapers.