Al Jazeera is getting reports of renewed gunfire and more military reinforcements pouring into Syria's southern city of Deraa.

It comes just a day after 50 people were killed across the country in Friday's crackdown on anti-government protesters.

Syria's leadership is now facing tough sanctions - the US calling their actions "deplorable".

The people of Deraa, on the country's southern border with Jordan have been under military lockdown since Monday.

Al Jazeera's Rula Amin has this update from the capital Damascus.