NEW DELHI: Pakistan has asked India to increase the security at its embassy in New Delhi following the receiving of a letter with threats to Pakistan’s High Commissioner to India, Abdul Basit, and other staff members of the High commission, according to a Times of India report.

The report has quoted Indian government sources as confirming that the Pakistani High Commission in New Delhi had received a letter containing serious threats to the staff members of the High Commission a few days earlier.

The staff members had raised the issue with Pakistan's Ministry of Foreign Affairs on Tuesday following which Pakistan raised the matter with Indian authorities and sought an investigation into the letter, so as to ascertain those responsible for sending the threat letter.

Pakistani sources said that it was the responsibility of the Indian government to ensure the protection the Pakistani High Commission and its staff.