Paris's Champs Elysees sees one policeman shot dead

A police officer was shot dead and another seriously wounded by two Kalashnikov-wielding gunmen on the Champs Elysees in central Paris tonight.

French police said that the incident was probably a 'terrorist act' and the world famous avenue was on lockdown by 9pm.

Heavily armed officers had flooded the area and a third individual - believed to be the killer - was also hurt and 'neutralised', according to police sources.

Police have said that 'at least' two people were involved in the attack which took place in the heart of the French capital.