[12][13] The radical cleric Abu Hamza al-Masri, who was convicted for terrorism-related charges in both the UK and the United States, served as its imam from 1997 to 2003.

[19] On 19 June 2017, at approximately 00:15 BST (UTC+1), a hired van rammed several pedestrians at the junction of Whadcoat Street and Seven Sisters Road,[20] near the Muslim Welfare House,[21] 100 yards (90 m) from Finsbury Park Mosque[22] in London.

[23] A group of Muslims had earlier performed tarawih, night time prayers held in the month of Ramadan,[24][25] when they came across a collapsed man at a bus stop.

[36] Neighbours described him as a family man, who was heard singing with his children in the kitchen just hours before the attack, while others believed he and his partner had separated, living in a tent in woodland in recent months,[46] and he was often seen shouting at her in the street.

[50] Sarah Andrews, Osborne's estranged partner, told detectives that he showed no signs of racism or extremism until three weeks before the attack.

According to her, he had been angered by Three Girls, a BBC docudrama about the Rochdale child sex abuse ring, and he began to accuse all Muslims of being rapists.

[46][54][55] Osborne testified in court that he expected Labour Party leader Jeremy Corbyn and London Mayor Sadiq Khan to attend the march, and hoped to kill both.

[52] The reactions to the attack included responses by political and religious leaders, media and the general public from other nations,[a] as well as international organisations.

[45] Flags were flown at half mast in Jersey on 19 June as a mark of respect for people caught up in the Finsbury Park attack.

[92] During a visit to the Finsbury Park mosque, the Prime Minister, Theresa May praised London's multicultural community and promised more security for places of worship and an increase in the efforts against extremism, including Islamophobia.

[93] Leader of the Opposition Jeremy Corbyn, whose constituency includes Finsbury Park, said he was shocked and that his thoughts were with those and the community affected by the event.

[93][95] Prince Charles visited Finsbury Park Mosque on 21 June, where he met community leaders and conveyed a message from Queen Elizabeth II.

[96] The Metropolitan Police said a 47-year-old male, believed to be the van driver, was detained by members of the public and arrested in connection to the incident.

[112][113] Mark Rowley, the outgoing Assistant Commissioner of the Metropolitan Police and the UK's most senior counter-terror officer said that there is "no doubt" that material posted online by people including Robinson drove the Finsbury Park terror attacker to targeting Muslims.

[27][119] Detective Superintendents Mark Gower and Claire Summers received OBEs for their services to the police response to and investigation of terrorist incidents including the Finsbury Park attack as part of the 2019 New Year Honours,[120] as did Imam Mohammed Mahmoud.

[121] On the five year anniversary of the crime, Prime Minister Boris Johnson tweeted his condolences to the family of the victims and those affected.

Sadiq Khan stated his thoughts were with the families, and that "That senseless attack five years ago was an assault on our shared values of openness, freedom and respect.

"[27] According to the Metropolitan Police, anti-Muslim crimes had fallen in the years since the attack, but another organisation, speaking to BBC News, criticized these numbers, saying many incidents had not been reported.

[27] In 2022, on the five year anniversary of the crime, the mosque chairman stated that Islamophobia was now "much worse", and criticized the government and some media for the "institutionalisation" of anti-Muslim sentiment.