Five Filipino teenagers are suing a British man in a court in the UK and claimed he abused them when they were children in the Philippines.

The five teenagers claim that Douglas Slade, 77, who was jailed for 24 years in 2016 on 13 child abuse charges in the United Kingdom, abused them while he was on the run from UK authorities and fled to the Philippines, the Daily Mail reported.

The case has been taken to the UK’s High Court. According to Justin Levinson, the teenagers’ legal representative, this was the first case in which foreign abuse victims have brought a case in the UK.

Slade, also known as “Britain’s vilest man,” abused five boys as young as 10 in the UK between the 1960s and the 1980s. He fled to the Philippines to escape prosecution and stayed there for about 20 years and continued to abuse young boys.

He was arrested in 2016 at Heathrow when he made a brief visit to Britain. At Bristol Crown Court, he was found guilty on 13 charges of child abuse and was jailed for 24 years.