At least 10 people have died and more than 70 have been injured in a passenger train derailment in northwestern Turkey.
Health Minister Ahmet Demircan said 318 people required treatment after the accident with 124 still hospitalized.
Emergency services, military and ambulance helicopters arrived at the scene.
A Turkish train heading to Istanbul from Edirne derailed Sunday. "The accident happened because of adverse weather conditions", he added.
The transport ministry said that the train had derailed as recent heavy downpours caused the ground beneath the track to erode away.
The cause of the crash is not clear, but officials said that heavy rains were reported in the region.
In a statement, Erdogan said the train derailment is being investigated thoroughly.
According to reports, the train was travelling from Uzunkopru to Instanbul and came off the rails in the Tekirdag Corlu district.
President Recep Tayyip Erdogan's office said he had received information from the ministers of transport and interior about the incident, and sent condolences for those killed.
Turkey's audiovisual authority RTUK later said the government had issued a temporary ban on broadcasting images from the scene.
Over the past few years, Turkish cities have been building high-speed rail lines to replace the country's ageing network.
The train involved in the accident appeared to be one of the slower passenger trains travelling on a single track railway.
10 were killed and 73 were injured after a train came off its rails on Sunday, July 8.
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