By Mubasher Bukhari LAHORE, Pakistan (Reuters) – A mob lynched a man because he had allegedly burnt pages of Muslim holy book the Koran in central Pakistan and dozens of people have been arrested, police and officials said on Sunday. Prime Minister Imran Khan ordered action against the mob and any police who acted an onlookers to the killing. “The lynching will be dealt with full severity of the law. “We have zero tolerance for anyone taking the law into their own hands,” he said in a statement. A government spokesman said more than 60 people suspected of involvement in the lynching have been …