KABUL, Afghanistan, Sha'ban 23, 1435, Jun 21, 2014, SPA -- An Afghan provincial government spokesman says gunmen have attacked a NATO air base on the outskirts of the eastern city of Jalalabad, where the U.S. has forces stationed, according to AP. Ahmad Zia Abdulzai says he heard several explosions. Afghan army units told him that a first attack targeted the base entrance, while sporadic gunfire rang out for around a half an hour as helicopters flew overhead. He had no further information regarding casualties or the number of forces involved. -- SPA 22:11 LOCAL TIME 19:11 GMT www.spa.gov.sa/w