The world organisation on January 31 resumed deliveries from the Bab al-Hawa border crossing point in Turkey into Idlib governorate in Syria, said the spokesman. A total of 25 trucks with food and medical supplies were delivered into Syria on January 31, the first delivery following the UN decision on January 20 to temporarily halt deliveries due to security concerns, said Dujarric. An additional 15 trucks delivered assistance on February 1, he added. Security remains a concern along the border. Due to the security situation, the United Nations is maintaining its temporary suspension of deliveries through Bab al-Salam, the second border crossing point in Turkey authorised by a UN Security Council resolution, said Dujarric. Mitigation measures have been put in place to ensure the safety of UN staff at Bab al-Hawa, including the use of armored vehicles and restrictions on staff authorised in the area, he added. The United Nations estimates that 13.1 million Syrians need assistance.