India's Ministry of External Affairs (MEA) has taken up the matter of missing Indian High Commission officials with Pakistan, sources said on Monday.
The two officials of the Indian High Commission in Islamabad have been missing and untraceable for last few hours.
Recently, had reported how Pakistan's spy agency ISI had been tailing and harassing Indian officials in Pakistan and had also increased their presence around the Islamabad residence of Gaurav Ahluwalia, the acting High Commissioner of India to Pakistan.
The incident came days after two Pakist officials at Pakist High Commission in New Delhi were deported for espionage activities in India.
South block is closely watching the developments, sources added.
The Indian mission in Islamabad has also lodged a complaint with local authorities and taken up the matter with Pakistan's Ministry of Foreign Affairs.
This incident is likely to cause a further dip in the already tenses India-Pakistan relations.
( With inputs from ANI )