The death toll from Monday's devastating earthquakes climbed to 5,894 in Turkey and 1,932 in Syria on Tuesday, while calls mounted to lift the US sanctions on Syria, state media reports say.

The number of injured rose to 31,777 and 1,449 respectively in Turkey and Syria, according to Turkish Health Minister Fahrettin Koca and the media office at the Aleppo governorate headquarters.

The death toll in both countries is expected to rise further as the rescue operations are hampered by bad weather, the BBC reported.

A powerful magnitude 7.7 earthquake struck Turkey's southern province of Kahramanmaras at 4:17 a.m. local time on Monday, followed by a magnitude 6.4 quake a few minutes later in the country's southern province of Gaziantep and a magnitude 7.6 earthquake at 1:24 p.m. local time in Kahramanmaras.

Turkey's southern province of Hatay and Syria's northern Aleppo city suffered the biggest loss of lives, while Lebanon, Israel, and Cyprus also felt the tremor, the BBC reported.

Turkish President Recep Tayyip Erdogan declared a three-month state of emergency on Tuesday in 10 of the country's provinces hit by the quakes.

The decision was taken to ensure that search and rescue activities and subsequent studies can be carried out quickly, he said at a press conference. (KB/IANS)