SEATTLE -- President Obama will award the Medal of Honor to an Army sergeant who lost his hand in Afghanistan when he tried to toss an enemy grenade away from himself and two colleagues.

Sgt. 1st Class Leroy Arthur Petry will be the second living, active-duty service member to receive the nation's highest military decoration for actions in the Iraq or Afghanistan wars. Last year, Obama awarded a Medal of Honor to Staff Sgt. Sal Giunta, also for actions in Afghanistan.

Petry was being recognized for courageous actions during combat operations against an armed enemy in the eastern Afghan province of Paktia in May 2008, the White House statement said. The 31-year-old native of Santa Fe, New Mexico, will receive the medal in a ceremony July 12, a White House statement said Tuesday.

"It's very humbling to know that the guys thought that much of me and my actions that day, to nominate me for that," Petry told the Army News Service.

Officials at Joint Base Lewis-McChord, the base south of Seattle in Washington state where Petry works with injured Rangers returning from deployment, referred calls to Army headquarters. A spokesman at headquarters did not immediately return calls seeking comment Tuesday.

According to the Army News Service, Petry was serving with the 75th Ranger Regiment when he was wounded during a rare daylight raid to capture a high-value target. Petry was clearing the courtyard of a targeted compound with Pvt. 1st Class Lucas Robinson when they came under fire.

A bullet pierced both of Petry's legs, and he and Robinson took cover by a chicken coop. As Sgt. Daniel Higgins arrived, a grenade was thrown from the other side of the coop, landed about 30 feet (nine meters) away and exploded, wounding Higgins and Robinson.

A second grenade landed even closer to the three wounded Rangers -- just a few feet away. Petry grabbed it and tried to toss it away, but it exploded in his hand.

"If not for Staff Sgt. Petry's actions, we would have been seriously wounded or killed," Higgins later wrote in a report cited by the Army News Service.

Petry placed a tourniquet on his own right arm before reporting that he had been wounded again and that the firefight was ongoing. Two other soldiers, Staff Sgt. James Roberts and Spc. Christopher Gathercole, came to their aid. Gathercole was shot and killed by an enemy firing from another part of the courtyard; Higgins and Robinson returned fire and killed him.

Petry enlisted in the Army in September 1999, the White House statement said. He completed multiple combat tours totaling 28 months of deployments to Afghanistan and Iraq. Previous decorations include two Bronze Stars, a Purple Heart and three Army Commendation Medals.