More than 17,000 people are now known to have died after Monday's earthquakes in southern Turkey and northern Syria.

Without shelter, water, fuel or electricity, the World Health Organization fears many survivors could yet lose their lives.

It says there's a danger there will be a secondary disaster which may cause harm to more people than the initial quake.

Six UN lorries carrying aid have now crossed the border from Turkey into Syria - the first international help people there have had.

Rescuers in both countries are continuing their painstaking work but hopes are fading for the many still trapped under the rubble.

British charities have launched an appeal to raise funds for people affected.