Yemen on edge as army deploys

SANAA, Yemen - Hundreds of thousands of protesters demanding President Ali Abdullah Saleh's ouster marched on Sunday in the Yemeni capital, raising tensions as troops deployed to try to prevent mass protests.

Security forces closed off all access routes to the capital from Saturday afternoon, while armed civilians loyal to the veteran president also took to Sanaa's streets, according to AFP.

"The people want to march on the (presidential) palace," demonstrators chanted.