At least five people have been killed in an assault on a security office in the Baqaa refugee camp outside the Jordanian capital.
Reuters, quoting an official source, says an assailant drove up to the building, fired a machine gun and sped away.
A government official confirmed that three intelligence officers and two other security personnel died in the assault, which occurred on the first day of the Muslim holy month of Ramadan.
Government spokesman Mohammed Momani labelled the early-morning incident a "terrorist attack." He gave no specific details, but said those who carried out the assault showed "the criminal behaviour of people who are outside our religion."
No individual or group has claimed responsibility for the attack.
The sprawling Baqaa camp was set up in 1968 to house Palestinian refugees fleeing the West Bank and Gaza Strip after the 1967 Arab-Israeli war.