Ammon News - AMMONNEWS - Jordanian border guards opened fire on four vehicles trying to enter illegally from Syria after they ignored orders to stop, the state-run news agency reported Saturday, without saying whether anyone was killed or wounded in the incident.

The Petra news agency said the incident took place Friday. Officials could not immediately be reached to provide further details.

Jordan hosts nearly 600,000 registered Syrian refugees — although Jordanian officials say the real number is far higher.

The kingdom has quietly supported Syria's rebels since the start of the uprising against President Bashar Assad in 2011, and ordered Syria's ambassador out last month after accusing him of making "offensive" statements about Jordan.

Syria's conflict, now in its fourth year, has killed at least 160,000 people, according to activists. Nearly three million Syrians have fled the country.

*The State