Children must be taught how to deal with a major terrorist attack in the same way they have been told to be wary of strangers, a senior Scotland Yard officer has said.

The Government’s campaign telling members of the public how to keep safe if they are caught in a Paris-style rampage must also be taught to children.

Asst Dept Commissioner Lucy D’Orsi, the National Police Chiefs' Council spokesman for protective security, said any terrorist attack on a crowded building or busy public space is likely to affect a large number of young people as well as adults.