US authorities allege Californian man Raj Matharu tried to conceal more than 1kg of drugs soaked into items of clothing

An alleged would-be drug smuggler soaked a cow onesie in methamphetamine, part of a whole suitcase full of clothes he tried to sneak aboard a plane, US justice officials have said.

Raj Matharu allegedly checked in two bags at Los Angeles international airport on a flight to Sydney, Australia, the US Department of Justice said on Tuesday.