A plane made an emergency landing because of a bad smell.

Bizarre on Female First

Bizarre on Female First

An aircraft travelling from Boston to London's Heathrow Airport was forced to stop in its path, landing in Boston at 11.48pm local time, around one-and-a-half hours after taking off from the original location, due to an unknown terrible odour.

A statement from the airline revealed the Airbus A330-300 had 154 passengers and a crew of 12 and no passengers had complained of illness.

Despite a maintenance team investigating the issue when the aeroplane arrived at a gate, there is no word yet on what the smell was.