A family of so-called amateur ‘jihadi hunters’ claims to have unearthed a terror plot on Melbourne’s Queen Victoria Market.

The UK-based family, which is hailed for exposing IS-inspired plots in Britain, claims to have spoken with a man involved in a terror cell in the Middle East.

News Corp today reports the man sent them a 5000-page terrorism manual.

The manual discussed possible targets, including Melbourne’s St Paul’s Cathedral, Chadstone shopping centre and the William Street law court precinct.

But it then went on to settle on Queen Victoria Market and urged an attack on June 14, during the month of Ramadan.

The information was handed to authorities earlier this year.

The federal and Victoria Police’s Joint Counter Terrorism Team say there is no imminent threat of an attack.