The police have ended a demonstration by climate protestors on the A10 Amsterdam ring road after a group of around 90 climbed on to the highway to stop traffic.

Campaign group Extinction Rebellion had called for the demonstration at midday on Saturday, saying they would act unless king Willem-Alexander spoke out against the use of fossil fuels.

The demonstration had been banned by Amsterdam mayor Femke Halsema but went ahead anyway. Police removed the last of the demonstrators around 2pm.

It is the fourth time that XR has staged a demonstration on the A10, but the last time, on March 30, the police stopped it taking place.