NEW : As Brennan and Saleh met in Saudi Arabia , clashes erupted between government security forces and armed tribesmen in one of the epicenters of Yemen 's anti-government movement . Clashes continue in the southwestern Yemeni city of Taiz . White House : ` ` A revolution in Yemen should begin immediately '' Yemeni state television shows Saleh and Obama meeting . Saleh has been recovering in Saudi Arabia since he was wounded in a June 2008 attack .
NEW : Clashes continue in the southwestern Yemeni city of Taiz . White House : ` ` A revolution in Yemen should begin immediately '' Yemeni state television shows Saleh and Obama meeting . Saleh has been recovering in Saudi Arabia since he was wounded in a June 2008 attack .