Iran has presented evidence to Pakistan that shows there are links between Pakistani intelligence services and the Jundallah militants group, a senior Iranian official has said.
Ebrahim Hamidi, the director of the justice department in Iran's Sistan-Baluchistan province, said this evidence was based on "confessions" obtained from Jundullah chief Abdolmalek Rigi's brother Abdolhamid, who is currently being held in an Iranian prison.
Hamidi said in an interview with Fars news agency that Pakistan should capture and extradite Abdolmalek Rigi so he can be tried on charges of ordering terrorist attacks inside Islamic Republic.
Iran claims Abdolmalek is based in Pakistan.
The official said Tehran would provide Islamabad more evidence if necessary.
Tehran has accused the Baloch Sunni militant group Jundullah's chief of organising several deadly attacks inside Iranian territory over the past few years.
Pakistan Interior Minister Rehman Malik said in October that Abdolmalek was in Afghanistan and that this information had been shared with Iran.
Malik made the comment after Iran levelled fresh allegations about Rigi's presence in Pakistan in the wake of a suicide attack by Jundullah in Sistan-Baluchistan province on October 18 that killed 42 people, including top commanders of Iran's Revolutionary Guards.