Some 12 youth coalitions inside the change square outside Sana'a University in Yemen's capital Sana'a said on Thursday that a revolutionary council is now taking shape, urging all coalitions to join it.

The announcement came days after the youth-led revolution council declared a controversial transitional council and the dialogue mini-committee and the Joint Meeting Parties, the main opposition bloc, said a national council will be formed as soon as early August.

The coalitions have revealed some names for the under foundation revolutionary council.

Muhammad Abdul Wahab Al-Qadhi was named as the council coordinator and Abdul Bari Tahir as official spokesman.

The revolutionary council will be finally declared after discussions with all uprising components in the coming days, they said.

"We are at a critical moment that requires good decisions and revolutionary choices to oust the regime and build a new civil Yemen," they said in a statement following their meeting.

"Making the popular revolution a success depends on its peaceful trend and all revolutionary acts come to prevent it from deviation," the statement said.