A man in a motorcycle detonated explosives Monday near a police van in northwest Pakistan, killing at least six people and wounding more than 30, police said. The explosion took place on a busy road in the city of Peshawar. No one immediately claimed responsibility for the attack. It was the latest deadly blast to rattle the country ahead of national elections next month. On Sunday, at least eight people were killed as the Pakistani Taliban continued to attack candidates in that country's upcoming vote, police said. In a statement to CNN, the Pakistani Taliban took responsibility for bombings at the offices of candidates in Peshawar and the Orakzai Agency. Both attacks Sunday targeted independent candidates.