In his last tweet before the attack, 66-year-old Leak said: “We will wipe them Muslim children out [they] is now our goal. And there [sic] disgusting women will be targeted mothers and sisters Burning alive.’ Posted at 10.22 am of Sunday. An hour later, at around 11.20am, Leak was photographed freeing a plastic bottle stuck to a lit firework at Dover Harbor’s Western Jet Foil, where dozens of people who had crossed the Channel in small boats were waiting to be processed by officers of the Border Force. Two people were injured in the attack with three petrol bombs. The leak was found dead minutes later at a nearby gas station. Leek’s last tweet was revealed in an archive of his social media posts compiled by anti-fascist charity Hope Not Hate before they were deleted. On Tuesday, counter-terrorism police said they were now investigating the incident, following multiple calls for it to be treated as an act of terrorism. In a Facebook post in October last year, Leak said he had written to the government warning: “I will end illegal immigration to this country within a year from the French side.” He later tweeted: “We will stop these boats.” The file also showed he was an active supporter of groups campaigning against the Channel crossing by filming and harassing people as they arrived in lifeboats. His social media history showed that his anti-immigration views were based on conspiracy theories. In September, he tweeted the anti-immigration group Migration Watch UK saying: “All these boats are being built in the same place by UN Pier 52.” He often expressed his support for Tommy Robinson, the founder of the English Defense League, whose real name is Stephen Yaxley-Lennon. In July, Leak tweeted: “Tommy Robinson is trending because he was right about the Grooming/Rape/Pedophile gangs in Telford.” In May this year, Leak retweeted posts about a campaign against housing asylum seekers at an RAF base in Linton-on-Ouse, a campaign promoted by Patriotic Alternative, the UK’s most active fascist group . Patrik Hermansson, senior researcher at Hope Not Hate, said: “The current hostile climate against migrants and the harsh focus on Channel crossings and migrant accommodation by the government, media and the far right is a theme that runs through the posts. of Leak. “Hope Not Hate’s file of Leaked tweets reveals extensive interaction with anti-immigrant campaigners… and praised ex-EDL leader Tommy Robinson”. On Monday, Edward Biggs, a Labor councilor whose ward includes the scene of the attack, urged police to treat it as terrorism. In the Commons, shadow home secretary Yvette Cooper asked if counter-terrorism officers were investigating the incident. “There’s no point in not being,” he said. On Tuesday night, Cooper tweeted: “I asked the Home Secretary why counter-terrorism police and counter-extremism units were not involved in the investigation into the terrible attack in Dover. She didn’t answer. Given the further information emerging today, I remain very concerned that this did not happen immediately.” Former shadow home secretary Diane Abbott tweeted: “Man who petrol bombed Dover Immigration Center had far right links. So why did it take two days for the investigation to be handed over to the counter-terrorism police?”