International News from CNN

MH370: Submarine sent down to search ocean floor

With no underwater pulses detected in almost a week, Australian authorities said Monday they will stop listening for pings coming from the floor of the Indian Ocean -- and will now deploy an underwater vehicle.

Russia warns of civil war

Russia's Foreign Ministry says any use of force in eastern Ukraine "could lead to civil war."

What will the Bluefin submarine see?

Will Ripley on what's involved in the underwater search for MH370 with the deployment of an autonomous underwater vehicle.

The dangers of testing Ebola

Dr. Sanjay Gupta reports on the dangers of testing Ebola, which has already claimed the lives of 14 healthcare workers.

Oscar Pistorius back on the stand for second week

Oscar Pistorius was back on the stand for a second week Monday, facing more relentless cross-examination as the prosecution challenges his account of the killing of his girlfriend, Reeva Steenkamp.

Ukraine deadline passes: No crackdown

Ukraine's acting president had told prostesters they would face a "full-scale anti-terrorist operation" if they didn't disarm and evacuate government buildings. But the deadline has passed.

Bus crash kills 36 in Mexico

At least 36 people were killed in a bus crash in southern Mexico early Sunday, the governor of the Mexican state of Veracruz said Sunday.

28 killed in violence across Iraq

A car bomb went off in the restive northern Iraqi city of Mosul on Sunday, killing nine people, while 10 others were killed in clashes there, security officials said.

MH370: Black box pingers 'most likely' dead

The batteries that power the beacons attached to Malaysia Airlines Flight 370's black boxes are "most likely" dead or almost depleted, an official with the company that designs and builds the pingers told CNN on Sunday.

Wildfire in Chilean city kills 11

Chile poured firefighters and police into the battle against a wildfire that swept through hundreds of homes in the Pacific coastal city of Valparaiso, leaving at least 11 dead.

Former Afghan foreign minister leads presidential vote

In Afghanistan's historic presidential election, former Foreign Minister Abdullah Abdullah is leading the early returns from last week's voting, the country's Independent Election Commission chairman said Sunday.

'Modest hope' to slow warming, but no 'free lunch,' U.N. warns

Keeping global warming down to a level people can live with means cutting carbon emissions to "near zero" by the end of the century, even in an increasingly industrialized world, the top U.N. experts on the issue concluded Sunday.

Ukraine launches 'anti-terrorist operation'

Ukrainian security forces launched an operation on Sunday to clear pro-Russian separatists from a police headquarters in the eastern city of Slaviansk, officials said, with Kiev reporting one dead.

Deadly car bomb explodes in Iraq

A car bomb in the Iraqi city of Baquba on Saturday killed three people and wounded 18 others, police said.

Flight 370: Australian PM 'confident'

Australia's Prime Minister on Saturday reiterated his "high degree of confidence" that acoustic signals picked up by searchers in the Indian Ocean are from the missing Malaysian plane's black box.

NATO says photos show invasion-ready jets, tanks and soldiers

NATO has released satellite photos that show the extent of Russia's military mobilization on its border with Ukraine -- including fighter jets, tanks, artillery and thousands of soldiers who are prepared to invade within 12 hours if called upon, say officials.

Like being back in the USSR

A sloshed bottle of brandy may have helped Karl Penhaul get into Transnistria, a breakaway state recognized by no sovereign nation sandwiched between Moldova and Ukraine.