BEIRUT - A powerful explosion hit Syria's northern city of Aleppo on Friday, close to the ruling party headquarters, the Syrian Observatory for Human Rights said.

"Initial details indicate that the Aleppo blast was targeting the local branch of the ruling Baath party and there is no information until now on the number of victims that fell in the explosion," the Britain-based group said in an email.

Please LIKE our Facebook page - it makes us stronger