Unidentified assailants in southwest Pakistan set two oil tankers on fire Wednesday in the latest attack targeting the supply line for NATO forces fighting in Afghanistan.

A local police official told the French news agency, AFP, that gunmen on motorcycles signaled for the drivers to stop, and opened fire as they continued driving. There were no casualties reported, and the culprits fled the scene.

The attack took place near the town of Dhadar in Baluchistan province.

Insurgents frequently target NATO supply trucks along routes heading west into Afghanistan.

Naval leaders from twelve Southeast Asian countries attended the annual Senior Leaders Seminar (SLS) March 29 through April 1, in Bangkok, Thailand, for in-depth discussions on piracy and counter-piracy operations.

The conference was co-hosted by the U.S. and Royal Thai navies, and combined naval leaders from Bangladesh, Brunei, Cambodia, Indonesia, Malaysia, Maldives, Philippines, Singapore, Sri-Lanka and Vietnam.

Turkish security forces battled with Kurdish rebels near the Turkish-Syrian border Friday, killing seven rebels. Three Turkish soldiers were wounded.

The clashes broke out near the border town of Hassa. They were among the deadliest between Turkish troops and rebels of the Kurdistan Workers Party since the group called off a six-month long cease-fire in February.

The PKK began its fight for an ethnic homeland in 1984. An estimated 40,000 people have died in the struggle.

Mexican Attorney General Arturo Chavez Chavez has resigned.

President Felipe Calderon announced Chavez's resignation Thursday, but gave no reason for the decision.

Chavez had faced criticism from women's groups that said he did little to prevent or solve rapes and murders of hundreds of women while he served as attorney general of the state of Chihuahua.

President Calderon has nominated Marisela Morales to replace Chavez. The nomination must be approved by the Mexican Senate. If approved, she would be the first woman in the job.

A mass grave in Zimbabwe has become a propaganda tool for President Robert Mugabe as he seeks a new election to end the country's tense power-sharing government.

The pro-Mugabe state media has given saturation coverage to the discovery of nearly 1,000 bodies in an abandoned mine shaft. The Monkey William mine is located near Mount Darwin, about 150 kilometers northeast of the capital, Harare.

Mr. Mugabe's ZANU-PF party says the dead are liberation fighters killed by white colonial troops more than 30 years ago in what was then Rhodesia.

Russian President Dmitry Medvedev is ordering his security forces to crush Islamic insurgents in the Caucasus, saying their criminal activities must be wiped out.

The president met with security officials Tuesday as Russian authorities announced that airstrikes and an attack on a rebel base in Ingushetia killed 17 militants Monday.

The authorities say Chechen rebel leader Doku Umarov, who has been charged in the January Moscow airport suicide bombing, may be among the dead. Officials are carrying out DNA tests for confirmation.

Pakistani military officials say friendly fire killed 13 paramilitary troops in the country's northwest as they were battling a militant ambush.

The officials said the attack took place late Monday in the Khyber tribal region along the Afghan border, and that the dead included a colonel and a captain in the Frontier Corps.

A top military commander said Tuesday the troops were killed by their own mortar.

Khyber lies on the main NATO land supply route through Pakistan into Afghanistan and is a home to several extremist groups, including the Pakistani Taliban.

Russia's Investigative Committee has announced it will prosecute at least two suspected terrorists for the bombing of the Domodedovo airport in January, killing 37 people.

Spokesman Vladimir Markin told reporters Tuesday that investigators have decided to bring charges against Chechen militant leaders Doku Umarov and Aslan Byutukayev.

Umarov has previously claimed responsibility for the bombing in a video posted online. He has also claimed to be behind the bombing of a Moscow subway train a year ago.

Pirates are reported to have seized a Kuwaiti-owned oil tanker in the eastern Gulf of Aden.