The United States on Monday urged Iran to halt executions with the US State Department saying it was "particularly troubled" by the hanging of a Dutch-Iranian woman after she was denied consular access.

"The United States is deeply concerned that Iran continues to deny its citizens their human rights," State Department spokesman Philip Crowley said in a statement late Monday.

Military helicopters evacuated hospital patients Tuesday as authorities ordered thousands of people to flee a powerful, "life-threatening" cyclone roaring toward waterlogged northeast Australia.

Cyclone Yasi was forecast to directly hit the far northern city of Cairns late Wednesday with wind gusts up to 155 mph, the Bureau of Meteorology said. Up to three feet (one meter) of rain could fall on communities in Queensland state already saturated from months of flooding.

U.S. ambassador to China Jon Huntsman resigned Monday, amid reports that he may seek the Republican nomination in 2012 and try to deprive his boss, President Barack Obama, of a second term.

Huntsman, a smooth former Utah governor, wrote to Obama to announce he would resign effective from April 30, after the White House noted he had told several officials he planned to leave in the first part of this year.

South Korea's president pressed North Korea on Tuesday to change its pattern of provocations and take responsibility for two deadly attacks last year, saying that could lead to a summit with North Korean leader Kim Jong Il.

President Lee Myung-bak's appeal came as the rival Koreas are to hold a preliminary meeting next week to lay the groundwork for high-level defense talks — the first in more than three years — to ease months of hostility on the Korean peninsula that have raised fears of war.

Six people including four police officers were killed and 14 people wounded in two bomb blasts in Pakistan's northwest on Monday, the first detonated by a teenage suicide bomber.

The suicide attack, which killed five people and left 11 injured, was claimed by the Pakistani Taliban, saying it targeted the police in the troubled city of Peshawar.

Ten people died when a regional passenger train collided with a goods train late Saturday in eastern Germany, police and firemen said.

Up to 20 other people were seriously injured in the accident which happened at Hordorf near Oschersleben, in Saxony-Anhalt, firemen and police said. They gave differing numbers.

The Dutch government said Saturday it was freezing its contacts with Iran, decrying the hanging of an Iranian-Dutch woman in the Islamic republic as an "act committed by a barbarous regime."

"The Netherlands has decided to freeze all contacts with Iran" after obtaining confirmation of Zahra Bahrami's execution from Iran's ambassador to the Netherlands, foreign ministry spokesman Bengt van Loosdrecht told Agence France Presse.

Filling stations, churches and mosques were set ablaze in central Nigeria's city of Jos on Saturday after students were wounded when soldiers opened fire to quell a protest overnight, security officials and students said.

Clashes had broken out Friday after three university students were stabbed by motor-cycle riding Muslim villagers outside their hostel.

The deputy governor of Afghanistan's southern Kandahar province, the spiritual home of the Taliban, was killed in a suicide car bomb attack on Saturday, local authorities said.

Abdul Latif Ashna was killed in the attack in Kandahar city while five others were wounded, the provincial press spokesman said, without providing further details.

A bomb exploded inside a grocery store frequented by foreigners on Friday in Kabul, killing at least eight people and injuring others, police and eyewitnesses said.

Three foreigners and a child were among the dead, Kabul Police Chief Mohammad Ayub Salangi told reporters at the scene.