Syria's state-run TV says two explosions have hit the northern city of Aleppo, killing at least 25 people and wounding 175, AP reported.

The blasts were the first in Aleppo, Syria's largest city, which has been relatively quiet since the uprising against President Bashar Assad's regime erupted in March.

Last month, a suicide attack in the capital Damascus killed 26 people. Assad's crackdown on the uprising has killed more than 5,400 people, according to the UN.

The government blames the unrest on a foreign conspiracy by Israel and the West. It says armed gangs and terrorists are behind the uprising, not protesters seeking democratic change.