It's being reported a Pakistani migrant arrested after last night's terror attack in Berlin may not be the person responsible.

12 people were killed and around 50 people injured when an articulated lorry ploughed into crowds at a Christmas market in the centre of the city - in a suspected terror attack.

German Chancellor Angela Merkel is calling for her country to come together after the tragedy.

The Taoiseach and Minister for Foreign Affairs have extended condolences to those affected.

Kim Buckley has this report:

Irish citizens have been urged to check in with family at home and let them know they're safe, while anyone with concerns here at home is being advised to call the Department of Foreign Affairs on 01 - 408 - 2000.