ISLAMABAD, July 9: An Al Qaeda-linked organisation, Harakat-ul-Jihad al-Islami (HuJI), has warned the Foreign Office to stop Pakistan’s high commission in New Delhi from sharing details and information about the group with the Indian government, police sources told Dawn on Saturday.

HuJI threatened that it would carry out attacks on the Foreign Office, foreign secretary, the high commission in Delhi and High Commissioner Shahid Malik if its demand was not met.

According to sources, the warning was given in a handwritten letter addressed to Foreign Secretary Salman Bashir. The Urdu-language letter was sent a few days ago by mail to Mr Bashir’s residence in Sector F-6.

Some senior police officers met the foreign secretary when they were informed about the letter.

The sources said that police officers analysed the letter and confirmed that it had been sent by HuJI. It was revealed that the letter was mailed from within Islamabad.

A team of police commandos has been deployed at the secretary’s residence and he has been provided police protection. Strict vigilance was mounted around the secretary’s house and the Foreign Office and the roads leading to the two places.Mohammad Ilyas Kashmiri, the ‘commander’ of HuJI, who was believed to have masterminded the attack on the naval base in Karachi, was killed in a US drone attack near Wana in South Waziristan last month.