Four held over 50,000-canister 'laughing gas' haul
Four people have been arrested after police discovered 50,000 canisters of nitrous oxide at a Manchester property.
Police discovered the "laughing gas" during a raid at an address on Longley Road, Fallowfield on Friday as part of a crackdown on psychoactive substances.
Insp John Picton said police seized the haul "thanks to intelligence".
A woman, 51, and three men aged 58, 30 and 25 were arrested on suspicion of possession of a controlled drug with intent to supply.
They were all bailed pending further inquiries, Greater Manchester Police said.