Soldiers stand guard after the dispersal of supporters of ousted Honduras President Manuel Zelaya, outside the Brazilian embassy in Tegucigalpa September 22, 2009.
Honduran security forces clashed on Tuesday with thousands of supporters of ousted President Manuel Zelaya outside Brazil's embassy, where he took refuge after slipping back into the country aiming to retake power.
Several hundred troops and police, some firing tear gas, cleared away rock-throwing demonstrators from the embassy. Twenty people were injured before security forces took control of the area and settled in for what might be a long standoff.
Leftist Zelaya sneaked back into Honduras on Monday, ending almost three months of exile after he was toppled in a coup and bringing the world's attention to his cause again.
"The embassy is surrounded by police and the military ... I foresee bigger acts of aggression and violence, that they could be capable of even invading the Brazilian Embassy," Zelaya said in an interview with Venezuelan broadcaster Telesur.
Honduras' pro-coup government wants to arrest Zelaya, a close ally of Venezuelan President Hugo Chavez, and charge him with corruption and trying to change the constitution.
Security forces blasted the embassy for 15 minutes with a high-pitched sound from a speaker perched in a truck but Honduras' de facto leader, Roberto Micheletti, said he would stop short of ordering the storming of the embassy.