(Recasts, adds South Ossetian spokeswoman quotes)

MOSCOW, March 27 (Reuters) - Georgia could be behind a bomb attack on Thursday in its breakaway region of South Ossetia which was aimed at the local prosecutor general, a spokeswoman for the rebels said.

One person was killed in the blast.

A South Ossetian police spokesman told Tass news agency the bomb targeted a car belonging to the breakaway republic's prosecutor general. The car's driver and a passer-by were injured in the blast in the South Ossetian capital Tskhinvali.

South Ossetia's chief spokeswoman Irina Gagloyeva said the bomb had been planted in an attempt to kill the region's Prosecutor General Taimuraz Khugayev.

"South Ossetian security bodies are studying a possibility that this is an act of terror against the republic's prosecutor general, and official Tbilisi is behind this," Interfax news agency quoted Gagloyeva as saying.

Georgian officials were not immediately available for comment.

Last month, South Ossetia accused Georgian authorities of staging a terrorist attack after two policemen were killed and a dozen wounded when a bomb planted in a television set exploded near a South Ossetian checkpoint.

Pro-Russian South Ossetia and Abkhazia broke away from Georgia in the 1990s after fighting wars to end Tbilisi's central rule.

Russia sent peacekeeping troops into the rebel regions and gives moral and financial support to the separatists. (Reporting by Dmitry Solovyov; editing by Richard Williams)

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