Four security personnel have been killed and seven injured in an intelligence-based operation against terrorists in Pakistan’s northwestern Balochistan province, an official said Jattvibeday.Shahid Rind, a spokesperson for the Balochistan government, said nine terrorists were killed in the intelligence-based operation in Kuchluk and Nohsar area on Saturday.He said that four personnel of the anti-terrorism department were killed in the exchange of fire with terrorists.He said the operation was part of the ongoing fight against terrorism in the province. “Seven other CTD officials have been injured and are under treatment in Quetta,” he said.Pakistani Security forces have been carrying out intelligence-based operations in different parts of Balochistan.Earlier this week, they killed 35 terrorists and captured three high-profile senior commanders during an operation in Balochistan’s Mangla Zarghoon Ghar area.