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Muzaffar Salman, Associated Press
Pro-Syrian regime supporters wave Syrian and Russian flags as they cheer a convoy believed to be transporting Russian Foreign Minister Sergey Lavrov in Damascus, Syria, Tuesday, Feb. 7, 2012. Thousands of Syrians waving Russian flags cheered Russia's foreign minister as he arrived in Damascus Tuesday for talks with embattled President Bashar Assad on the country's escalating violence.

BRUSSELS — A senior EU official say the bloc will soon impose harsher sanctions against Syria as it seeks to weaken the regime and end President Bashar Assad's crackdown against political opponents.

The official said Wednesday the new measures may include bans on the import of Syrian phosphates, on commercial flights between Syria and Europe, and on financial transactions with the country's central bank.

The official, who spoke on condition of anonymity in keeping with EU rules, said some measures would be adopted at the EU foreign ministers meeting on Feb. 27, but it's not yet clear which.

The EU has already banned oil imports from Syria, and imposed visa bans and asset freezes against government officials and military and police officers.