Members of the German climate activist group Last Generation caused considerable disruption at Munich Airport on Saturday morning at the start of a holiday weekend by entering restricted areas, officials said. The airport was initially closed for security reasons, airport officials and the federal police said. After about two hours, one of the two runways was reopened, followed by the second runway around an hour later. The Last Generation reported on the social media platform X that six people sat down in groups of two at different locations at Munich Airport. Numerous police officers and fir…