THE British government has ordered a probe under the Official Secrets Act into the leaking of a secret report describing a 1996 plot to assassinate Libyan leader Moamer Kadhafi. Police in London are investigating how a four-page document from MI6, Britain’s foreign intelligence service, came to be published on a US-based website. Police officers arrived at the newspaper’s offices last week to serve notices ordering it to hand over tapes and documents relating to an article it carried on the alleged plot. The report said MI6 knew two months in advance of the plot by a member of a rebel group that wanted to overthrow Kadhafi’s regime. Foreign Secretary Robin Cook, who refused to comment on whether the internet document was genuine, last week repeated assurances, first given in 1998, that MI6 was not involved in the plot. Libya told the British ambassador in Tripoli on Tuesday that it expected London to conduct a full inquiry.