A suicide car bomb in the main business district brings chaos to Damascus.<br/> <br />At least 15 people were killed and another 53 wounded.<br/> <br />Rescue workers rushed to remove bodies from the smouldering wreckage.<br/> <br />There was no immediate claim of responsibility for the attack, but state media blamed "terrorists", a term the government uses for opposition fighters.<br/> <br />Opposition groups accused the government of carrying out the attack.<br/> <br />Syrian insurgents based in the outskirts of Damascus have pushed into areas near the government-held heart of the city, stepping up attacks in recent weeks.<br/> <br />More than 70,000 people have been killed in the Syrian conflict, which started with peaceful protests against President Bashar al-Assad that were violently suppressed.<br/> <br />An armed struggle ensued, forcing more than a million Syrians to flee abroad, and displacing millions more inside the country.