AMMAN, Jordan, (AP) – Relatives of the mentor of slain al-Qaeda in Iraq leader Abu Musab al-Zarqawi say the man was detained.

Two relatives said Jordan’s state intelligence agency summoned Palestinian-born militant Abu Mohammed al-Maqdisi late Friday and that he has not returned home since.

They said they confirmed his detention with authorities.

Both relatives spoke on condition of anonymity because they feared government retribution.

Jordanian security officials declined comment.

Al-Maqdisi shared a cell block between 1995 and 1999 with al-Zarqawi, who led al-Qaeda in Iraq before he died in a U.S. airstrike in 2006.

Al-Maqdisi was released in 2008 after three years in jail for encouraging attacks on U.S. forces in Iraq.