Former Chilean dictator Augusto Pinochet has been placed under house arrest in connection with the killing of two bodyguards of the president he overthrew in 1973.

A judge in Santiago issued the order Monday.

The two bodyguards were arrested September 11, 1973, the day of the coup that toppled President Salvador Allende. They were killed the following month.

General Pinochet has been accused of numerous human rights violations during his rule from 1973 to 1990. More than 3,000 people were killed or disappeared for political reasons during that time.

The former dictator was placed under house arrest last month in connection with disappearances, torture and murder in the 1970s, but was later released.

General Pinochet has been stripped of the legal immunity he enjoyed as a former president. But Chilean courts have ruled previously he is physically and mentally unfit to stand trial.

He turned 91 years old on Saturday and used the occasion to say he took what he called "political responsibility" for everything that happened during his 17 years in power.