On the verge:

Sanaa, Yemen (CNN) — Yemen's embattled President Ali Abdullah Saleh has accepted a deal brokered by neighboring Persian Gulf nations to step down, Yemeni officials said Saturday.

Both Saleh and the Yemeni opposition have agreed to the deal in principle. But Saleh has yet to sign the agreement, which stipulates he leave office within 30 days and provides complete immunity for him and those who served in his regime, said a senior foreign ministry official, who requested anonymity because he is not authorized to speak to the media.