The renowned London School of Economics has denounced the BBC for using a student-organized trip to North Korea as "cover" for a reporting trip to the secretive communist country.

The LSE says the BBC put students at risk by having at least one of a team of three journalists pretend to be affiliated with the university to gather material for a TV program set to be broadcast Monday.

The university says it has tried and failed to convince the BBC not to air the program.

The BBC's John Sweeney, who apparently posed as a post-graduate LSE student, said Sunday it was "entirely wrong" for the university to try to prevent the broadcast from going forward.

LSE blamed BBC for not being forthcoming about its reporting plans.