At least 15 people have been killed and dozens wounded after a car bomb struck the central Syrian city of Homs.

AFP reports that at least 64 were wounded, with one medical source telling the news agency the number of injured could be as high as 100.

The Syrian Observatory of Human Rights puts the number of deaths at 16, and says the bombing took place in the neighbourhood of al-Zahraa.

The group also warns that the number of the dead is likely to rise due to the serious injuries.

Around a quarter of a million people are estimated to have died in Syria since the country's civil war began in 2011.