A crew member was wounded Friday when unknown gunmen shot at a military helicopter flying 7 casualties of Thursday's attack in Sinak, Papua, forcing the military to delay the evacuation, an officer said here.

Thursday's attack also killed one soldier and injured another in Tinginambut, Papua, bringing the death toll in two separate attacks to 8 soldiers with two other soldiers injured, Iskandar Sitompul, spokesman of Indonesian military said.

"This morning a helicopter Superpuma flying the 7 victims in Sinak was shot. The bullet hit left hand of a soldier in the helicopter and caused a problem to the helicopter," Sitompul told Xinhua by phone.

"So, we can not evacuate the bodies until the situation is conducive to do so," he said.

Previously, the spokesman said the attacks on the military post in Tinginambut and soldiers conducting patrol and carrying logistics in Sinak on Thursday morning killed 5 soldiers and seriously injured 2 civilians.

He said that dozens of unidentified gunmen attacked the post and the patrol at 08: 30 a.m. local time.

Sitompul said that now the police and military officers were jointly pursuing the perpetrators, but the deep forest and unfavorable geographical condition hampered the track-down.

Papua in easternmost Indonesia is home to separatist Free Papua Movement known as OPM, which has been engaged in insurgency to split Papua from Indonesia.

The separatist group has frequently attacked military and police force and the U.S.- based mining giant PT Freeport compound in Papua.