 Alzaga convened an open council ("cabildo abierto"), which removed viceroy Sobremonte from military command, giving it to Liniers, and forbidding Sobremonte's return to Buenos Aires.On January 1, 1807 Alzaga was re-elected Mayor and took control of the city government.The British fleet had not left the Río de la Plata, and awaited reinforcements which arrived under command of general Whitelocke.