Across the Middle East and North Africa, CNN's reporters and iReporters are covering protests, many of them inspired by revolts in Tunisia and Egypt that toppled those countries' longtime rulers. Check out our interactive map explaining the roots of the unrest in each country and full coverage of the situation in Libya. Have a story to tell from the scene? Click here to send an iReport. CNN's Fareed Zakaria breaks down what the movements toward democracy mean.

Developments on unrest in the Middle East and North Africa:

[LIBYA, 10:00 p.m. ET, 5:00 a.m. local] The Canadian government has frozen $2.3B (CDN) in assets tied to the Libyan government, President Gadhafi and those associated with Gadhafi, a government spokeswoman said. The assets were frozen after Canada enacted sanctions over the weekend, Canadian Foreign Affairs spokeswoman Lynn Meahan said.

[LIBYA, 6:47 p.m. ET, 1:47 a.m. local] In Libya, the rivals for power appear to be heading a stalemate. CNN's Nic Robertson explains what's happening in the capital, Tripoli, why two cities in rebel control could be key to the country's future, and why neither side has the power to dislodge the other completely.

[LIBYA, 4:13 p.m. ET, 11:13 p.m. local] The U.N. General Assembly has adopted by consensus a resolution to oust Libya from its seat on the 47-member Human Rights Council.

[LIBYA, 3:53 p.m. ET, 10:53 p.m. local] U.S. Defense Secretary Robert Gates and Navy Adm. Mike Mullen, chairman of the Joint Chiefs of Staff, said Tuesday they have not seen independent confirmation corroborating reports that Libyan leader Moammar Gadhafi has had Libya's military fire on Libyans from the air.

[WASHINGTON, 2:52 p.m. ET] U.S. Defense Secretary Robert Gates said Tuesday he has directed the Navy ships USS Kearsarge and USS Ponce to the Mediterranean as the United States positions ships in the region near Libya. The focus is on humanitarian assistance and evacuations, and there has been no authorization for use of force, he said.

[YEMEN, 12:01 p.m. ET, 8:01 p.m. local] Yemeni President Ali Abdullah Saleh fired the governors of five of the nation's provinces, where anti-government protests have unfolded for several weeks. All five were appointed to other positions, according to a decree released Tuesday.

[WASHINGTON, 10:29 a.m. ET] U.S. Secretary of State Hillary Clinton said Tuesday that the United States has "joined the Libyan people in demanding that (Moammar Gadhafi) must go - now, without further violence or delay - and we are working to translate the world's outrage into action and results."

[IRAN, 10:12 a.m. ET Tuesday, 6:42 p.m. local] Security forces clashed with protesters and fired tear gas Tuesday in front of Tehran University, the opposition website Kaleme reported. Witnesses told CNN that police were out in force on the streets of the Iranian capital in anticipation of demonstrations called for Tuesday by supporters of two key opposition leaders.

[TUNISIA, 10:09 a.m. ET Tuesday, 4:09 p.m. local] At least three Tunisian government officials resigned Monday and Tuesday, the country's official news agency reported, in the wake of the resignation of the prime minister on Sunday.

[LIBYA, 7:15 a.m. ET Tuesday, 2:15 p.m. local] UNHCR staff at the Libya-Tunisia border say 14,000 people fled Libya for Tunisia on Monday and 10,000 to 15,000 are expected to cross today. Between 70,000 and 75,000 have crossed since February 20, officials said. They said they need a way to move these people from the border area to avoid a humanitarian crisis.

[YEMEN, 4:19 a.m. ET Tuesday, 12:19 p.m. local] Thousands of anti-government demonstrators gathered outside Sanaa University in the Yemeni capital Tuesday in a planned protest  by youth  groups, opposition leaders and even members of Yemeni President Ali Abdullah Saleh's powerful tribal  group who want an end to Saleh's continued rule.

In a counter-demonstration, thousands of government loyalists descended in the city's Tahrir Square.

[LIBYA, 3:30 a.m. ET Tuesday, 10:30 a.m. local] The European Parliament is scheduled to discuss the turmoil in Libya on Tuesday, a day after the U.S. Ambassador to the United Nations said Moammar Gadhafi sounded "delusional" and a Libyan woman said protesters will eventually succeed in ousting Gadhafi because "too much blood has been shed."

[VENEZUELA, 2:37 a.m. ET Tuesday, 3:07 a.m. local] Venezuelan President Hugo Chavez claims the United States' criticisms of Libyan leader Moammar Gadhafi have a clear aim: military invasion.

"Let's not  get carried away by the drums of war, because the United States, I  am sure that they are exaggerating and distorting things to justify an  invasion," Chavez said Monday, according to Venezuelan state media.

Chavez is a longtime ally of Gadhafi.

[OMAN, 1:04 a.m. ET Tuesday, 10:04 a.m. local] A fourth day of demonstrations are expected in Oman on Tuesday, this time in the capital Muscat.

On Monday, anti-government protesters in the key port city of Sohar refused to end protests despite orders from the sultan to hire 50,000 people and pay a stipend to people who are out of work, sources in the Gulf state told CNN.

[YEMEN, 12:55 a.m. ET Tuesday, 8:55 a.m. local] Youth  groups, opposition leaders and even members of Yemeni President Ali Abdullah Saleh's powerful tribal  group are expected to take to the streets Tuesday to protest his continued rule.

The demonstrations come a day after the country's main opposition bloc rejected Saleh's call to form a unity government until elections to replace him are held. The bloc said its goal is simply "the fall of the regime."

[IRAN, 12:40 a.m. ET Tuesday, 9:10 a.m. local] Supporters of Iranian opposition leaders Mir Hossein Moussavi and Mehdi Karrubi have called for demonstrations Tuesday to protest the two men's reported imprisonment.

[LIBYA, 8:30 p.m. ET Monday, 3:30 a.m. local] After United Nations Secretary-General Ban Ki-moon met with U.S. President Barack Obama on Monday about possible measures to take regarding Libya, Ban told reporters that "further action may well be necessary."

Gadhafi "has lost his legitimacy when he declared war on his people," Ban said of the Libyan leader. "This is again a totally unacceptable situation. I sincerely hope and urge him to listen to the peoples' call. That's my message to him."

American officials slapped sanctions on Libya on Friday, and the U.N. Security Council unanimously adopted a resolution on Libya on Saturday.