AFP - Air raids and clashes have continued to shake parts of Syria since a ceasefire started at midnightThursday, according to the Syrian Observatory for Human Rights, a Britain-based monitor of the war.

Four civilians and nine rebels have been killed since the truce took effect, according to the group, which relies on a network of sources in Syria
for its information.

The air strikes and fighting "are unlikely to lead to the ceasefire collapsing, but they are violations of the deal," Observatory head Rami Abdel
Rahman said.