Drugs estimated to have a street value of �10,000 have been found in student halls at the University of Luton. Bedfordshire Police executed search warrants at the halls of residence in Buke Street on Thursday morning.
A significant quantity of crack cocaine was found by officers along with small amounts of heroin and cannabis.
Three men were arrested on suspicion of possession with intent to supply class A drugs and were being questioned at Luton police station.
A police spokeswoman said: "The search warrants were carried out following a full consultation with the university which fully supports the police action to stamp out alleged drug dealing on its premises."