Turkey (IP) - Turkey’s President Recep Tayyip Erdogan has declared seven days of national mourning, and Syria has appealed to the United Nations for help following devastating earthquakes that killed more than 5,000 people and toppled buildings across southeast Turkey and northern Syria.

Iran PressAsia: Authorities fear the death toll from Monday’s predawn magnitude 7.8 temblor, followed by a magnitude 7.6 earthquake and several aftershocks will continue to climb as rescuers looked for survivors among tangles of metal and concrete spread across a region already suffering under Syria’s 12-year civil war and a refugee crisis.

Rescuers searched through the frigid night into Tuesday morning, hoping to dig more survivors out of the rubble as those trapped cried out for help from beneath mountains of debris.

Turkish President Recep Tayyip Erdogan said on Tuesday that the death toll from the earthquakes in Turkey had risen to 3,549.

Orhan Tatar, an official with Turkey’s Disaster and Emergency Management Authority (AFAD), said earlier on Tuesday that 20,426 others were injured. Tatar said more than 5,700 buildings had also been destroyed.

In Syria, at least 1,602 people were killed and about 3,500 others were injured, according to the Ministry of Health and the White Helmets rescue organization.

Turkish President Recep Tayyip Erdogan announced on Tuesday a state of emergency for three months in 10 southern provinces hit by Monday's massive earthquakes.

"Based on the authority given to us by Article 119 of the Constitution, we decided to declare a state of emergency," Erdogan said at the State Information Coordination Center in the capital Ankara.

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