Obama voices concern to Lebanon on Hezbollah's role in Syria

US President Barack Obama told his Lebanese counterpart on Monday he was concerned about Lebanese Hezbollah militants fighting in Syria to support Syrian President Bashar Assad, the White House said.

Obama and Lebanese President Michel Suleiman spoke by telephone the same day Syrian activists said about 30 Hezbollah fighters and 20 Syrian soldiers and militiamen loyal to Assad had been killed in the fiercest fighting this year in the rebel stronghold of al-Qusair. (Reuters)