In a statement issued on Tuesday, Qassemi expressed deep sorrow over the “horrible” attack that occurred on Sunday night and offered his condolences to the families of the victims.
“Violence and extremism are condemned and rejected no matter where and with what intention, purpose or means they take place and which group of innocent people are the victims,” the spokesman said.
During the attack on Sunday night, a van plowed into worshippers outside a mosque, killing one person and injuring eleven people in what London’s mayor described as “a horrific terrorist attack”.
Officers arrested one man after they were called shortly after midnight to the incident on Seven Sisters Road, near Finsbury Park station.
British Prime Minister Theresa May said police were treating the van incident “as a potential terrorist attack”.
“I will chair an emergency meeting later this morning. All my thoughts are with the victims, their families and the emergency services on the scene,” she said.
Sadiq Khan, the London mayor, called it a “horrific terrorist”.