A suicide bomber on Wednesday rammed a car packed with explosives into a police station in Pakistan's north-western city of Peshawar, killing at least two security personnel and injuring 28 people, police said.
Fayyaz Toor, the police head of Khyber-Pakhtunkhwa province of which Peshawar is the capital, said that the suicide attack took place before dawn, dpa reported.
The explosion flattened the police station where the office of the Criminal Investigation Department was located.
Two policemen died while 28 people, including 18 police, were injured, Toor said. "Some people are still trapped under the debris."
It was the latest militant attack since al-Qaeda leader Osama bin Laden was killed in the north-western city of Abbottabad in a US special forces operation early this month.
Late Sunday, four gunmen raided a naval aviation base in the southern port city of Karachi and killed 10 security personnel during a siege that continued for more than 15 hours. The attackers also destroyed two navy aircraft.