(KUNA) -- Four US and one Afghan soldiers were killed and six US soldiers wounded in two separate combat operations in eastern and southern Afghanistan on Saturday. Three US soldiers were killed and three wounded while conducting combat operations in the eastern Kunar province on Saturday. The soldiers killed in the troubled Pech Dara district when their vehicle hit an improvised explosive device and engaged a group of Taliban extremists. "Our hearts and prayers go out to the families and friends of our fallen warriors," said Brig Gen James Terry, Deputy Commanding General of the Combined Joint Task Force - 76. There was heavy fighting during the operation, but enemy casualties have yet to be reported, said the general. "We remain committed to the government and people of Afghanistan," he vowed.Separately, in the southern Uruzgan province, one US and one Afghan National Army soldier were killed during a firefight with Taliban the same day. The firefight occurred when a joint Afghan and US army team encountered a large insurgent force while operating in support of the ISAF mission. The patrol was attacked with small arms fire. The patrol returned fire with small arms, artillery and close air support. Three U.S. service members were wounded in the same engagement. They have been medically evacuated to an ISAF medical facility for treatment where they are listed as stable. The patrol continued to exchange fire and repelled about 100 to 150 insurgents for nearly four hours, said a press release. Names of the service members and branch of service are being withheld pending notification of next of kin.