JUBA, South Sudan — South Sudan's capital was rocked Sunday by heavy-arms fire between forces loyal to President Salva Kiir and those of Vice President Riek Machar, causing widespread casualties and raising fears the country is returning to civil war.

The fighting began in the morning and continued until about 8 p.m., when a large thunderstorm seemed to put a damper on the violence, said U.N. mission spokeswoman Shantal Persaud. She confirmed that a U.N. armored personnel carrier was hit by a shell at a camp sheltering civilians. U.N. peacekeepers in the vehicle were wounded, witnesses said.

“The condition is really very bad. We have a lot of casualties this side, I think around 50 to 60 besides those of yesterday,” said Budbud Chol, who oversees security at a clinic in the camp.

At least one person has died in the camp, he said, but he did not know about casualties outside where the fighting was heavy.

The opposition side blamed government forces for starting the fighting Sunday morning with an attack on a rebel base in the Jebel area of the capital. Three helicopter gunships bombed rebel camps, said William Gatjiath Deng, a spokesman for the rebel forces.

South Sudan's army confirmed the Sunday clashes but it is not clear how the fighting started.

About 10,000 Juba residents fled neighborhoods where there was fighting, said Jeremiah Young, policy adviser for World Vision in South Sudan.

Sunday's fighting was a resumption of the conflict that erupted Friday in which more than 100 people died. A precarious calm was restored on Saturday — the day South Sudan marked its fifth independence day.

Turkish jets strike Islamic State militants and Kurdish rebels

ISTANBUL — Turkish jets and artillery struck 10 Islamic State targets as they were preparing to fire on Turkey, the country's General Staff said Sunday.

U.S.-led coalition jets and Turkish howitzers hit Islamic State rocket and mortar batteries in north Syria's Dabik region overnight. Eight militants were reportedly killed, the General Staff said.

Meanwhile, Turkish jets also struck seven Kurdistan Workers' Party, or PKK, targets in Turkey's southeastern province of Hakkari.

On Sunday, a roadside bomb in Hakkari killed five soldiers, according to the state-run Anadolu Agency, which blamed the attack on PKK rebels.

Meanwhile, the U.N. began airlifting humanitarian aid to families cut off from supplies in northeastern Syria, bringing 40 tons of food to Qamishli, an area controlled by the Syrian government, the U.N. said.

Police: Third victim dies after attacks on San Diego's homeless

SAN DIEGO — San Diego police said a man injured during a series of attacks on homeless men in the city has now died — bringing the death toll to three.

Police said 23-year-old Dionicio Derek Vahidy died at a hospital on Sunday. He was attacked and burned on Wednesday, and authorities had not expected him to survive.

Police said Vahidy was from San Diego and was homeless.

He was the last of the men attacked. Two other men were killed, and a third was severely injured. Most of the men were sleeping when they were attacked, and some were set on fire.

On Thursday, 36-year-old Anthony Padgett was arrested on suspicion of murder, attempted murder and arson in the attacks.

It's not clear if he has hired an attorney.

Japan's ruling coalition set to win in parliamentary elections

TOKYO — Japan's ruling coalition was a clear winner in Sunday's parliamentary elections, preliminary results and Japanese media exit polls indicated, paving the way for Prime Minister Shinzo Abe to push ahead with his economic revival policies but also possibly changing the nation's postwar pacifist constitution.

Half of the seats of the less powerful upper house were up for grabs. There had been no possibility for a change of power because the ruling coalition, headed by Abe's Liberal Democratic Party, already controls the more powerful lower house, but the balloting was a key gauge of how much support Abe's coalition has among the public. The opposition had called on voters to show their rejection of Abe's position to have a more assertive military role for Japan.

Australian leader claims win, but queries remain

SYDNEY — Eight days after Australia's general election ended in uncertainty, the prime minister finally claimed victory Sunday for his conservative coalition.

Though the question of who won the July 2 election was answered, the question of exactly how the conservatives will rule the fractured Parliament was not. With official results still days or even weeks away, it was unclear whether Prime Minister Malcolm Turnbull's Liberal Party-led coalition had won enough votes to govern in its own right or whether it would need the support of independent and minor party lawmakers to form a government.

Either way, Turnbull faces a rough road ahead with a divided party, a splintered Senate and a politically weary public that has endured five prime minister changes in as many years.

U.S. releases Yemeni from Gitmo, sends him to Italy

MIAMI — A Yemeni prisoner at Guantanamo Bay has been released after more than 14 years in custody and sent to Italy.

The Pentagon said Sunday that the release of Fayiz Ahmad Yahia Suleiman reduces the number of men held at the U.S. base in Cuba to 78. He is one of about two dozen low-level Guantanamo prisoners expected to be released in the coming weeks.

Military records show Suleiman was suspected of fighting with al-Qaida against U.S. and coalition forces in Afghanistan. He was never charged. He was cleared for release in 2010, but the U.S. does not send Yemeni prisoners to their homeland because of instability there and had to find another country to accept him for resettlement.

The U.S. transferred two Guantanamo detainees to Italy in November 2009.

G-20 ‘concerned' about protectionism: Trade ministers from the G-20 nations called on their governments on Sunday to roll back anti-trade measures that have become more pervasive than any time since 2009.

After a two-day meeting in Shanghai, the ministers said they're “concerned” about rising protectionism.

U.S. airman missing: A U.S. Air Force spokesman said Sunday that Italian law authorities have called off the search for an airman in the area where he disappeared July 2 in northern Italy. Italian police searched the area where Staff Sgt. Halex Hale was last seen for three days before finding no evidence of any kind.