UPDATE: A suspicious package found on a UPS plane stopped in Britain was initially tested and found not to contain explosives, an FBI source said on Friday.

(Original story continues below.)

An ink toner cartridge converted into a bomb was found aboard a United Parcel Service flight traveling to Chicago from Yemen, CNN reported on Friday.

The bomb was discovered when the plane was stopped in London, CNN said.

Two UPS planes at Philadelphia airport and one UPS plane at Newark airport in New Jersey were also being investigated on Friday for suspicious packages. A UPS truck in New York City was also under investigation, police said.

(Reporting by Christine Kearney, writing by Michelle Nichols)

Source: Reuters US Online Report Domestic News

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