2 Western photojournalists killed

? Two Western photojournalists, including an Oscar-nominated film director, were killed Wednesday in the besieged city of Misrata while covering battles between rebels and Libyan government forces. Two others working alongside them were wounded.

British-born Tim Hetherington, co-director of the documentary “Restrepo” about U.S. soldiers on an outpost in Afghanistan, was killed inside the only rebel-held city in western Libya, said his U.S.-based publicist, Johanna Ramos Boyer. The city has come under weeks of relentless shelling by government troops.

Chris Hondros, a New York-based photographer for Getty Images, was also killed. His work appeared in major magazines and newspapers around the world, and his awards include the Robert Capa Gold Medal, one of the highest prizes in war photography.

Many circumstances of the incident were unclear. A statement from Hetherington’s family said he was killed by a rocket-propelled grenade.

The Washington Post reported that the journalists had gone with rebel fighters to Tripoli Street in the center of Misrata, scene of the some of the most intense recent fighting in the city.

After an ambulance rushed Hetherington and Guy Martin to a triage tent, an American photographer whose bulletproof vest was splattered with blood implored the drivers to go back for more victims, the Post reported.

Hetherington was bleeding heavily from his leg and died about 15 minutes after he reached the triage facility, while Hondos died after suffering a severe brain injury from shrapnel, the Post reported.

The two other photographers — Martin, a Briton affiliated with the Panos photo agency, and Michael Christopher Brown — were treated for shrapnel wounds, doctors said.

Libyan leader Moammar Gadhafi’s forces have intensified their weekslong assault on Libya’s third-largest city, firing tank shells and rockets into residential areas, according to witnesses and human rights groups.

NATO commanders have admitted their airpower is limited in being able to protect civilians in a city — the core mission of the international air campaign.

In Washington, the White House expressed sadness over the attack and called on Libya and other governments to take steps to protect journalists.

“Journalists across the globe risk their lives each day to keep us informed, demand accountability from world leaders and give a voice to those who would not otherwise be heard,” press secretary Jay Carney said.

Hetherington, 40, was killed a day after he tweeted: “In besieged Libyan city of Misrata. Indiscriminate shelling by Qaddafi forces. No sign of NATO.”

“Tim was in Libya to continue his ongoing multimedia project to highlight humanitarian issues during time of war and conflict,” Hetherington’s family said in a statement. “He will be forever missed.”

Hetherington was nominated for an Academy Award for his 2010 documentary film “Restrepo.” The film was co-directed by Sebastian Junger, author of “The Perfect Storm.”

Hondros, 41, had covered conflict zones since the late 1990s, capturing clutching, jeering and fearful moments from wars including Kosovo, Iraq and Afghanistan.

One front-page New York Times photo from 2007 showed a Humvee patrol in Iraq from a different angle: The ruddy hands of an Iraqi interpreter and a pair of muddied boots belonging to a gunner.

Two other journalists have been killed in the Libyan conflict, according to the New York-based Committee to Protect Journalists. An unknown gunman killed Mohammed al-Nabbous, founder of the online Libya Al-Hurra TV, in the rebel stronghold of Benghazi on March 19. Cameraman Ali Hassan al-Jaber was shot when his Al-Jazeera crew was ambushed near Benghazi on March 13.