Opposition sources say the car bomb in Aleppo hit an area close to a local security office. The Syrian Observatory for Human Rights said the explosion had killed and injured people in the area but gave no estimate on the number of casualties.
More top news
The district's director of homeland security has said officials are planning for 800,000 to 900,000 people to attend the ceremony.
The Supreme Court is set to decide on whether disabled travellers are legally entitled to have priority use of wheelchair spaces on buses.
There will be some brightness, with the best of the sunshine towards the south and southeast where it will again be chilly.