Deadliest day of Syria uprising

US President Barack Obama has condemned Syria's "outrageous" use of violence against anti-government demonstrators, accusing the regime of seeking Iran's aid to quell the rebellion."Instead of listening to their own people, President Assad is blaming outsiders while seeking Iranian assistance in repressing Syria's citizens through the same brutal tactics that have been used by his Iranian allies," Obama said in a statement.Obama said the US continues to oppose Syrian government's destabilising behaviour, including support for terrorism and terrorist groups. "This outrageous use of violence to quell protests must come to an end now. We regret the loss of life and our thoughts are with the families and loved ones of the victims, and with the Syrian people in this challenging time. Amnesty International says at least 75 people have been killed during the deadliest day of pro-democracy protests in Syria when Syrian government forces opened fire on demonstrators, seeking to disperse thousands who took to the streets for "Good Friday" protests.