Pakistani security forces on Monday killed four terrorists who stormed a military compound, officials said, after a gun battle lasting several hours. At least three members of the security forces were also killed in the attack amid a surge in violence in the South Asian country, which is facing an economic crisis. The attack took place in the Bannu district of the north-western province of Khyber Pakhtunkhwa, which borders Afghanistan. Terrorists detonated an explosive-laden vehicle to enter the high-security residential compound. “Terrorists attacked Bannu cantonment at around 5 am (0000 GMT)…