Erdogan calls Merkel on Berlin market truck crash

According to the sources, who spoke on the condition of anonymity, Erdogan expressed sympathy to German people for what it called a "terrorist attack”.

Turkish president also informed Merkel on the evacuation process of civilians from Aleppo, the sources added.

At least 12 people were killed and 50 others injured when a truck crashed into a crowded Christmas market in the German capital.

In brief remarks to journalists on Tuesday, Merkel said Monday’s deadly truck incident at Berlin Christmas market was likely a terrorist attack.

"We still don't know many details with certainty, but at this stage we have to presume that this was a terrorist attack,” Merkel said.

Merkel promised a full investigation into the incident and said those involved would be punished using the full strength of the law.