A Jordanian official says the number of troops killed during a raid of a suspected militant hideout has risen to four, AP reported.
The clash late on Saturday in the central town of Salt was among the deadliest between troops and suspected extremists in recent years.
It raised new concerns about attempts by domestic and foreign militants to carry out attacks and destabilize the pro-Western kingdom.
Government spokeswoman Jumana Ghuneimat initially said three members of the security forces were killed when suspects holed up inside a building opening fire and set off explosions.
She said on Sunday a fourth member of the force died later.
Events were set in motion Friday when assailants detonated a homemade bomb under a police car, killing an officer.