87 die in worst day for Syria's army: NGO

At least 210 people have been killed in a bloody day of fighting across Syria, including 87 government troops, 64 rebels and 59 civilians.

At least 87 Syrian army soldiers have been killed in a bloody day of fighting - the heaviest toll for the government since the start of the conflict, the Syrian Observatory for Human Rights says.

At least 210 people were been killed across the country on Thursday, including 64 rebel fighters and 59 civilians, according to the latest observatory toll.

"More than 70 per cent of the deaths today are soldiers - that shows the intensity of the fighting," said the observatory's president, Rami Abdel Rahman.

The group compiles its figures from a network of contacts on the ground.

Of the soldiers killed, 36 died in the northeast province of Idlib, where many of the fiercest clashes have taken place over the last three months.

More than 32,000 people have been killed in the nearly 19-month conflict.