Explosions have struck two cities in Syria, killing several people a day after a spokesman for Kofi Annan, the UN-Arab League envoy, said the UN peace plan for Syria remained on track.

The UK-based Syrian Observatory for Human Rights reported that five people were killed on Saturday in a blast in the Tala Azaziya neighbourhood of Aleppo apparently targeting a car wash.

Al Jazeera's Hashem Ahelbarra reports.