Opposition leader Jeremy Corbyn, whose Islington North constituency contains Finsbury Park, said he was "totally shocked" and would be attending prayers at the mosque later Monday.
- The driver of the van, a 48-year-old man, was held by people at the scene until police arrived.
"No matter what the motivation proves to be, and we are keeping an open mind, this is being treated as a terrorist attack".
"All the victims were Muslim and there are now no- other suspects", he added. And given the outburst from the suspect, authorities swiftly began to consider this as an attack upon a religion, especially since the collision occurred in an area where at least four mosques are situated. Any causative link between his death and the attack will form part of our investigation.
They had urged members of the local congregation to maintain vigilance during Ramadan, when many observing the holy month wear clothes that identify them as Muslims. "My prayers are with the victims and their families", read the statement. Hatred of people due to their religion has no place in our society.
The Finsbury Park mosque was once a notorious hub for radical Islamists but has changed markedly in recent years under new management. That attack also appeared inspired by Islamist extremism.
Rabbi Herschel Gluck, president of Shomrim, a Jewish neighbourhood watch group, was at the police cordon to show "solidarity" with the community.
"The British Muslim community requires all decent people to stand with us against this evil violence", said Mohammed Shafiq, head of the Ramadhan Foundation community group. "(My reaction was) deep shock and deep concern about the ramifications of this terrorist atrocity. One person was killed and 10 were hurt. Nothing to do with any religion.Let's #StandTogether & not let them divide us!' "He did what he did deliberately to hit and kill as many Muslims as possible, so he is a terrorist".
Toufik Kacimi, chief executive of the Muslim Welfare House, speaking to Sky News, said the attack clearly targeted Muslims, who were leaving evening prayers during Ramadan.
Government minister Sajid Javid also spoke out to condemn this "hate crime attack", and he wished to offer "maximum reassurance" that the Muslim community will have all the public support that it needs. He explained to me that the man was very violent, aggressive, and he came over him until the police arrival - but there were other people helping him because the crowd was extremely angry, unhappy, so some people started acting violently too.
"We have been informed that a van has run over worshipers as they left #FinsburyPark Mosque", the Muslim Council of Britain tweeted early Monday. The man receiving first aid is now reported to have died at the scene, while eight others sustained serious injuries from the van.
"I saw a man, he was underneath the van", Warfa said, who described how his friends tried to lift the van to free him.
Mr Basu thanked members of the public who detained the driver, saying "their restraint in the circumstances was commendable". He was arrested on suspicion of attempted murder.
"This is being treated as a terrorist attack and the Counter-Terrorism Command is investigating", said Neil Basu, senior national coordinator for terrorism at the Met.