The accused sit at the trial venue inside a prison facility at Camp Bagong Diwa, Taguig City, Philippines. Picture: Supreme Court – Public Information Office via AP

Manila – A Philippine court on Thursday convicted several members of an influential political clan in the country on 57 counts of murder in the country’s worst election-related killing that took place 10 years ago.

Judge Jocelyn Solis Reyes sentenced 28 suspects found “to have acted as principal” in the massacre, including Andal Ampatuan Jr, his brother Zaldy and six other relatives, to life imprisonment or 40 years in jail without parole.

Fifteen defendants were convicted as accomplices to the killing and sentenced to at least six years in prison, while more than 50 other accused were acquitted, including four members of the Ampatuan family.

The November 23, 2009, massacre in a remote, hilly village in Maguindanao province, 960 kilometres south of Manila, sparked local and international outrage and highlighted the culture of impunity in the country.

Fifty-eight people were killed in the massacre, but the convictions were only for 57 murders because the body of the last victim has not yet been found.