Jordan has closed its borders with Syria and Iraq after a suicide bombing killed six soldiers on Tuesday.
The government explained that the decision was a precautionary measure to ensure such event doesn’t take place again.
It is not clear who was behind the attack, which was launched from Syrian territory, close to a refugee camp.
A Jordanian official who, spoke on the basis of anonymity, said the authorities closed the crossing after several mortars fell late on Tuesday into an empty yard on the Jordanian side of the crossing.
He also stated that the Jordanian government instructed employees not to come to work.
The Jordanian government explained no new refugee camps will be built and none will be expanded.
Traffic through the border crossing has fallen dramatically from pre-crisis levels, when it served as a major transit route for hundreds of trucks a day transporting goods between Turkey and the gulf.
Though the borders has been closed, refugees have entered through a series of unofficial crossings along the border