Militants attacked a police station in south Kashmir's Pulwama district on Thursday morning resulting in firing exchanges between the security forces and the militants.A senior police officer said militants attacked the Pulwama police station with grenades and automatic gunfire in the wee hours of Thursday morning."Firing exchanges started immediately after the attack between the security forces and the militants. Further details are awaited," the officer said.Militants also snatched a weapon from the residential guard of a regional National Conference (NC) block president in D.H. Pora village of Kulgam district, the officer said.