La Paz, Feb 28 (IANS/EFE): A brother and sister who worked in broadcasting were found murdered, family members and Bolivian authorities said Monday.

The bodies of Veronica Penasco, 36, and brother Victor Hugo, 32, were discovered over the weekend in El Alto, a gritty industrial city near La Paz, their cousin Hernan Amaru told the media.

Penasco worked for San Gabriel radio and hosted a bilingual Spanish-Aymara programme on state television, while Hugo was part of the staff at Pachacamasa radio.

The siblings were last seen alive early Saturday when they left for work, Amaru said.

The victims bore bruises and marks around the throat, suggesting they were strangled to death, El Alto police Col. Felix Rocha told reporters.

Communications Minister Amanda Davila expressed solidarity with the victims' families and said authorities will pursue the investigation until "we find those responsible".

Bolivia's National Press Association, which represents media owners and executives, documented 46 instances of aggression toward journalists in 2011.