A vehicle has exploded on a bridge in Niagra Falls, situated between the US and Canada.

The FBI has described the situation on Rainbow Bridge as "very fluid".

All four land crossings connecting the two countries have been closed until more is known about the cause of the blast.

<img data-id="fixed-image" src="https://www.gbnews.com/media-library/image.jpg?id=50541608&amp;width=980" alt="" width="100%" height="auto">Twitter

The FBI has described the situation on Rainbow Bridge as 'very fluid'{ai:summary}A car explosion on the Rainbow Bridge between the US and Canada has led to the closure of all land crossings. The FBI is investigating the incident, which remains unclear. #foreignaffairs

Major explosion rocks Niagara falls as all US-Canada border crossings LOCKED DOWN and FBI terror task force mobilised

Loading...