The state news agency said Mr Assad would address "current circumstances".

Concessions made during his last televised address have not dampened anti-government demonstrations.

Meanwhile, thousands of people who fled a military assault in the north-west of the country are now living in refugee camps across the border in Turkey.

Some refugees said the army had cut off the border town of Bdama, which had been providing supplies to those fleeing Jisr al-Shugour.