Gabonese security forces have stormed the headquarters of the defeated presidential candidate, Jean Ping, as unrest continues after Saturday's disputed election.
A government spokesman said the operation in the capital, Libreville, was aimed at rooting out "criminals".
Mr Ping said two people had been killed in the assault on his headquarters.
His supporters have staged protests after official results gave President Ali Bongo a narrow victory.
They have accused the government of stealing the election.
The government has said security operations have been targeting "armed criminals" who had earlier set the parliament on fire.
A government spokesman said the operation in the capital, Libreville, was aimed at rooting out "criminals".
Mr Ping said two people had been killed in the assault on his headquarters.
His supporters have staged protests after official results gave President Ali Bongo a narrow victory.
They have accused the government of stealing the election.
The government has said security operations have been targeting "armed criminals" who had earlier set the parliament on fire.

