At least 40 people have been killed and dozens wounded in five explosions across mostly government-controlled areas of Syria, according to state media reports.

Monday morning's blasts hit the coastal city of Tartous, the central city of Homs, the suburbs of the capital Damascus as well as the northeastern city of Hasaka, which is mostly controlled by Kurdish forces but where the government maintains a presence.

The blast in Hasaka was claimed by the Islamic State of Iraq and the Levant (ISIL) group.

State media said at least 11 people were killed and 45 injured in a double bomb attack just outside Tartous, in the coastal province of the same name, which is a base of President Bashar al-Assad's government.

"Two terrorist blasts on Arzuna bridge, the first a car bomb and the second a suicide bomber who detonated his explosive belt when people gathered to help the wounded," Syrian state television said.  

State media also reported five people killed in Hasaka, in the northeast of the country.

The Syrian Observatory for Human Rights (SOHR), a Britain-based monitor, said the blast hit a checkpoint belonging to the Kurdish Asayesh security forces.

And state media also reported a car bomb at the entrance to the Al-Zahra neighbourhood in Homs, which is controlled by the government.

It said at least two people were killed and four wounded in the bombing, which is the latest in a series of attacks targeting Al-Zahra, where most residents are Alawite, the sect to which President Bashar al-Assad belongs.

State media also reported another bomb attack on a road west of the capital Damascus, but gave no immediate toll in the blast.

That attack targeted a checkpoint and left three people dead, said the SOHR.

(Al Jazeera)