MNA� UN Secretary General Ant�nio Guterres slammed Tehran terrorist attacks in a phone call with Iranian envoy Gholamali Khoshroo.

Extending his condolence and sympathy to Iranian nation and government, Guterres underlined that United Nations strongly and seriously denounces the attacks in Tehran.

�UN is beside Iranian nation in fight against terrorism, which needs a collective and international cooperation,� he said to Iran�s permanent representative to UN.

On Wednesday, Iran�s parliament and mausoleum of Ayatollah Khomeini in Tehran were hit in near-simultaneous attacks that have killed 17�people and wounded 52 others.�Terrorist group ISIL has claimed responsibility for both attacks.