Hackers are vowing to escalate cyberattacks on Canadian institutions if charges are not dropped against an Ottawa teen at the centre of a “swatting” investigation.

The group of hackers claimed responsibility for cyberattacks on key Canadian websites over the weekend, including Parliament of Canada and Toronto Police Services websites.

The hackers say it’s retaliation for the arrest of a Ottawa teen they say has been falsely accused by police. The teen was arrested in May and slapped with 60 charges related to “swatting,” a prank used to lure SWAT teams to fake emergencies. He is accused of incidents in the Greater Toronto Area, Quebec, Alberta, and in several U.S. states.

The teen’s father, who cannot be named due to a court order protecting his son’s identity, met with reporters Sunday in Ottawa to read a statement on behalf of the the hackers who have claimed responsibility for the cyberattacks.

“As you have noticed, we have taken out Ottawa.ca, OttawaPolice.ca, and now the Supreme Court of Canada. This is not the end, in fact we are just getting started,” the statement said. “We are helping the youth clear his name. We will be disclosing documents in the upcoming days.”

The teen’s father told reporters that the hackers had given him “the evidence I need to clear my son’s name.”

On Friday, city workers were forced to shut down Ottawa.ca after an illustration of a banana appeared on the site Friday along with a cryptic message directed at an Ottawa police officer. The Ottawa Police Services website also appeared to be inaccessible over the weekend.

A Twitter user who claimed responsibility for the Ottawa website disruptions told CTVNews.ca in an email Saturday that he and other hackers are trying to draw attention to the Ottawa teen’s case.

The Twitter user, who called himself Aerith, claimed to have proof that the officer named in the Ottawa.ca hacking “manufactured evidence” in the case.

The hackers said that they will continue to attack government and city websites until police admit they have made a mistake and drop all charges against the teenager.

With files from CTV Ottawa