The president writes that hostilities "have terminated" because of the ceasefire, arguing he does not need congressional authorisation.

Under the new rules, police will be able to issue tickets directly to the car's manufacturer when an autonomous vehicle breaks a traffic law.

Under the new rules, police will be able to issue tickets directly to the car's manufacturer when an autonomous vehicle breaks a traffic law.

The warning comes as President Donald Trump said he was "not excited" by Iran's latest proposal for a peace deal.