This just came in from Reuters: "Police detained hundreds of Shiite militiamen when they entered the Imam Ali Mosque in Najaf on Friday, but radical Shiite cleric Moqtada al-Sadr was not found, Iraqi officials said.
A government source put the number of fighters in the shrine at 400 but an interior ministry spokesman said police who entered the mosque had found 500 lightly armed men prepared to surrender.
There are 500. They were escorted from the shrine then the police will help them as much as they can. They may well be covered by the amnesty, Sabah Kadhim, a spokesman for the interior minister, told CNN television in a live interview.
He said radical Shiite cleric Sadr may have escaped the U.S.-led military siege of the Imam Ali Mosque."