A car carrying six Arabs was stopped at the Mizmora checkpoint after its two numberplates had different numbers.
Border Police ordered the driver to stop at the side and told the occupants to get out of the car.
Six Arabs were sitting in the car. In a search of the car, a bag containing knives, stun grenades and incendiary bombs was discovered.
The checkpoint was closed, a bomb disposal expert was summoned and the occupants of the car were arrested. On interrogation they said they had intended on entering Jerusalem and performing a terror attack.