A team of investigators from Indonesia who are in Pakistan have questioned the younger brother of Hambali, the alleged leader of the militant Islamic group Jemaah Islamiyah.
The group has been blamed for last year's bomb blast in Bali.
Pakistani officials in Karachi said that the investigators also questioned five other Indonesians who were detained with Hambali's brother, Rusman Gunawan, earlier this month.
Officials said that the Indonesian officials wanted to ascertain whether Hambali's brother and his associates had any links with the al-Qaeda network or Jemaah Islamiyah.