The BBC Arabic account on Twitter also appears to have been hacked by the Syrian Electronic Army, a cyber group that supports Syrian President Bashar al-Assad.
More top news
Top temperature 14 Celsius (57 F).
The Prime Minister will say Moscow's brazen flouting of international law represents a threat to the basis of democracy across Europe.
In some cases, victims of violence and other serious crimes face long delays as forces are unable to dispatch officers promptly.