Security has being stepped up across Europe for New Year celebrations following this year's terror attacks.

In London, armed police will be on tube trains for the first time and concrete bollards are being put up to keep traffic away from crowds.

Three thousand police are on duty - with further armed officers patrolling the Tube network.

Superintendent Phil Langworthy's from the Metropolitan Police:

Security has been tightened also in Berlin, following the Christmas market lorry attack.

Chancellor Angela Merkel says Islamist terrorism is the biggest challenge facing Germany:

Police in Scotland are also promising a visible presence in Edinburgh.

Al Thomson has organised Hogmanay celebrations there: