Japan reactors melted down

TOKYO — A major international mission to investigate Japan's flooded, radiation-leaking nuclear complex began Tuesday as new information suggested that nuclear fuel had mostly melted in two more reactors in the early days after the March 11 tsunami.

That would mean that all three troubled reactors at the plant have had their cores mostly melted down.

The team of U.N. nuclear experts met with Japanese officials and planned to visit the Fukushima Dai-ichi plant in coming days to investigate the worst nuclear accident since Chernobyl in 1986 and assess efforts to stabilize the complex.

Roadside bomb kills 10 in Afghanistan

KABUL, Afghanistan — A roadside bomb killed 10 workers in southern Afghanistan, and NATO again promised that the coalition would not abandon the country even if some members plan to withdraw their forces.

NATO Secretary General Anders Fogh Rasmussen said that plans to hand over control of seven areas to Afghan soldiers in July remained on course, despite new bombings and assaults by insurgents.

Four Iraqis die in Baghdad car bombing

BAGHDAD — Four people were killed Tuesday in the explosion of a bomb in a parked car in southwestern Baghdad, officials said.

The blast in a Sunni neighborhood also injured 14 people.

The information came from police and medical officials who spoke on condition of anonymity because they were not authorized to speak to reporters.

There was no immediate claim of responsibility.

Violence has decreased dramatically in Iraq since the height of the war, but bombings and shootings still happen daily across the country, many against a sectarian background.