At least six policemen were killed in back-to-back bombings targeting an adviser to the Pakistani Prime Minister, officials said, according to dpa. A suicide bomber first blew himself up near the convoy of Ameer Muqam, who was on his way to a political meeting in north-western Pakistan, police said. A remote-controlled device then went off a few seconds later, they said. "It was a twin blast, ... a suicide attack followed by a [bomb] blast," said Abdullah Khan, the local police chief. Muqam, one of the key leaders of Sharif's Pakistan Muslim League-Nawaz party, was unhurt in the attack in the Shangla district of Khyber-Pakhtunkhwa province. "I'm safe, but six of my guards have been killed," Muqam told Pakistan's Geo television by telephone immediately after the attack.