Hello, my name is Helen Sullivan and I ll be bringing you the latest from the harrowing aftermath of the earthquakes in Turkey and Syria.
Rescuers are working to rescue countless people from under the rubble, working in freezing temperatures. The death toll from Monday's 7.8 magnitude quake is expected to rise sharply as rescue efforts pass the 72 hour mark that disaster experts consider the most likely period to save lives.
More than 90% of the survivors of quake events are rescued within the first three days, according to Ilan Kelman, professor of disasters and health at University College London. It's been more than 72 hours since the first earthquake struck on Monday.
The director general, Tedros Adhanom Ghebreyesus, told a media briefing that none of the World Health Organization is sending expert teams and special flights with medical supplies to Turkey and Syria.
None of Syria's government has received help from a host of Arab countries, including Egypt and Iraq, as well as from Russia, which has sent rescue teams and deployed troops already in Syria to join relief work, including in Aleppo.