Main news of July 30

A roundup of what has happened in the past 24 hours

WORLD

* Libyan leader Muammar Gaddafi has sworn to assassinate Italian Prime Minister Silvio Berlusconi, Corriere della Sera reported

* The number of people killed in the Sukhodilska-Vostochnaya Mine blast in Ukraine's Luhansk Region has reached 24, the Ukrainian Emergencies Ministry said

* More than 189,000 residents of Chinese southern island province of Hainan have been evacuated as tropical storm Nock-Ten hit the coastal region, the Xinhua news agency said

* The UN Security Council has extended the mandate of the joint United Nations-African Union peacekeeping force in Sudan's volatile region of Darfur for one year

* After more than 36 years under wraps, former U.S. President Richard Nixon's testimony over the Watergate scandal is set to be released following a court order, the BBC said

* General Abdel Fatah Younes, the Libyan rebels' top military commander, has been killed by his comrades after being arrested by rebel security forces on suspicion of treason, media reports said, quoting a rebel minister

* A group of Russian air inspectors will make an aerial observation flight over the territory of the United States in line with the Open Skies Treaty, Russia's Defense Ministry said