Syrian TV are reporting that an explosion in Damascus has hit the main gate of the Syrian Interior Ministry.
A resident has said she heard sirens and shooting after a "huge explosion".
More top news
The government has announced plans to ensure staff receive tips left by customers in bars and restaurants.
Tens of thousands are having do not resuscitate orders imposed without families' consent, according to the Royal College of Physicians.
The prime minister has said the debate over Britain's EU membership has affected his long-term friendship with the mayor of London.