Iranian diplomats in Germany paid a visit to the scene of the deadly attack on Christmas market in Berlin and left flowers in memoriam of the victims.
They sent condolences to family of victims, and expressed sympathy with their families.
In a statement, Iran embassy in Germany emphasized on the necessity of solidarity and unity among all nations and governments in their fight against terrorism.
In the wake of this deadly attack, the embassy also canceled the organized Yalda night ceremony.
The Islamic State of Iraq and the Levant (ISIS) group has claimed responsibility for the attack in Berlin that left 12 people dead and 48 injured, AP reported.