The Israeli army installed several military checkpoints around the West Bank city of Jenin Thursday morning, putting the city under total siege.

Troops are searching all the cars entering and leaving the city, and they are preventing people under the age of 30 from entering or leaving the Jenin .

Soldiers are installing checkpoints across all the main city streets, checking ID cards and strip searching civilians before letting them pass, local sources reported.

The Israeli army has invaded Jenin since the early hours of Thursday morning .  Three Palestinians have been arrested by troops so far in the invasion.