On Tuesday, a whistleblower claimed that certain security personnel at London’s O2 Brixton Academy routinely received bribes in exchange for letting people in without tickets.

Wakadaily report on December 16, that the Afrobeat singer was forced to cancel his sold-out show at O2 Academy Brixton midway through after crowds of people, many of whom did not have tickets, attempted to gain access.

Following the crush at the concert venue in south London two people were reportedly death while four others were critically injured.

The whistleblower, a security guard, told the BBC that, “There were people taking money. Some staff made £1,000 cash. Our company knew what was going on and they knew the people who were doing it and they did nothing about it,” the guard said.

He added that he was working on the front doors when the incident happened on 15 December and that he witnessed what happened.

Explaining how bribes were paid, he stated that “They [some AP Security staff] will tell you a few things, [then you] go round the corner, give them a lot of cash and they will walk you straight in the front door.”