Sanaa, Yemen (CNN) -- Hundreds of anti-government protesters marched toward a presidential palace in Yemen on Sunday, calling for regime change in the Middle Eastern country.
Some of them chanted, "First Mubarak, now Ali," referring to Yemeni President Ali Abdullah Saleh and Hosni Mubarak, who recently resigned as president of Egypt after nearly 30 years in power.
Security forces put up a barbed wire barricade and blocked the protesters' path about two miles from the palace.
Nearby, a group of about 40 pro-government demonstrators chanted, "With our souls, with our blood, we will sacrifice for Ali".
The anti-government group first gathered at the gates of Sanaa University earlier Sunday, where another group of pro-government demonstrators carried pictures of Ali. CNN