A truce in Aleppo in northern Syria between regime forces and rebels that was due to expire late Monday has been extended by 48 hours, the army command said.

"The 'regime of silence' in Aleppo and its province has been extended by 48 hours from Tuesday 01:00 am (local time) to midnight on Wednesday," a statement said.

The temporary truce, initially for two days and then prolonged until Tuesday at 00:01 am (21:01 GMT Monday), was decided after fighting killed nearly 300 people since April 22 in Aleppo, where some areas are held by rebels and some by government forces.