Bishop Oscar Jaime Florencio of the Military Ordinariate of the Philippines offered prayers for those who died in a military plane crash on Sunday.
The prelate also expressed his condolences to the families of the victims.
The deadly crash happened as the C-130 transport plane carrying dozens of combat troops overshot a runway at Jolo airport in Sulu province.
In a circular issued Monday, Bishop Florencio asked all military chaplains to offer Masses for the 50 people who died in the crash.
He also asked for prayers for the “fast recovery” of those injured in the tragedy.
All 96 passengers on board had been accounted for, with 49 military personnel injured as well as four civilians on the ground, military spokesman Major General Edgard Arevalo said.
In a news conference, Arevalo said the plane was in “very good condition” and had 11,000 flying hours remaining before its next maintenance was due.
Defense Secretary Delfin Lorenzana ordered an investigation into the country’s worst military air disaster in nearly 30 years.
The military command said the soldiers were flying to the provincial airport of Jolo from Laguindingan, about 460 km to the northeast, to be deployed to their battalions.
The army in the sprawling Philippine archipelago has been fighting a long war in the area against Islamist militants from Abu Sayyaf and other factions.
There was no sign the plane was brought down by insurgent fire, officials said.
Jolo airport has a 1,200-meter runway that usually takes civilian turboprop flights though occasionally some military flights, according to a Civil Aviation Authority of the
The Lockheed aircraft had only recently arrived in the Philippines and was one of two provided by the U.S. government through the Defense Security Cooperation Agency, a government website said in January.
It quoted an Air Force spokesman as saying the aircraft would boost capability for heavy airlift missions.
The website C-130.net said the plane that crashed had first flown in 1988. The model is a workhorse for armed forces around the world.
The Philippines armed forces have a patchy air safety record. Last month a Black Hawk helicopter crashed during a training mission, killing six people.
A Philippines Air Force C-130 crash in 1993 killed 30 people. A 2008 crash of the civilian variant of the Lockheed plane flown by the Philippines Air Force killed 11 people, the Aviation Safety Network says.
The country’s worst plane crash was that of an Air Philippines Boeing 737 in 2000, which killed 131 people. – with a report from CBCP News and Reuters