Officials at Oxford university had to close a party down when a student turned up with his home made flame thrower.
Inigo Lapwood, 20, said he made the weapon using parts from a nail gun and diesel engine glow plug and a canister of butane gas.
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Pollen levels are very high
Showers continuing to clear this evening for a mostly dry night with clear spells.
Heavy showers clearing for a dry night ahead.