NEW DELHI, Sept 20: Indian Foreign Minister S.M. Krishna spoke to his envoy in Pakistan about the security of his staff and officials on Thursday as protesters demonstrating against an anti-Islam film thronged the sensitive Diplomatic Enclave in Islamabad, local reports said. They said Mr Krishna inquired about the safety and wellbeing of the mission officials and other Indian nationals from High Commissioner Sharat Sabharwal. Reports quoting official sources in Delhi said an initial demonstration of around 1,000 swelled to around 5,000 with the arrival of protesters carrying the flags of hardline Islamist groups Jamaat-ud-Dawa, Jamaat-i-Islami and Sipah-i-Sahaba, which is banned by Pakistan government. India has already banned the film and forced its shutdown on the internet.—Correspondent