US secretary of state Hillary Clinton vowed on Sunday to strengthen existing sanctions against the Syrian regime and seek further ones to dry up funding and arms shipments.
"We will work to seek regional and national sanctions against Syria and strenghten the ones we have. They will be implemented to the fullest to dry up the sources of funding and the arms shipments that are keeping the regime's war machine going", Clinton told journalists in Sofia on Sunday.
"We will work to expose those who are still funding the regime and sending it weapons that are used against defenceless Syrians including women and children," the US top diplomat added.
She expressed regret at the failed UN sanctions vote against Syria Saturday calling it "a travesty."