An Argentine court has convicted and sentenced to life in prison 15 former military, police and civilian officials for abductions, torture and killings of dozens of dissidents during the country's 1976-83 dictatorship.

Four others received sentences of 12 or 13 years, and two defendants were acquitted.

Among the victims whose cases played a role in the trial was Laura Carlotto, daughter of the founder of the activist group Grandmothers of Plaza de Mayo. Her newborn son was taken from her shortly before she was executed in 1978 at the La Cancha detention center in a rural area of Buenos Aires province and turned over to a couple for adoption. In August, after DNA tests, the son was reunited with his grandmother, Estela de Carlotto, head of the Grandmothers.