The death toll from the twin bombings in Istanbul has risen to 38. Turkey declared Sunday a day of national mourning after Saturday night's blasts near the home stadium of soccer giants Besiktas, Agence France-Presse reported.
Turkey's President Recep Tayyip Erdoğan canceled a planned trip to Kazakhstan after Saturday's explosions in Istanbul, his office said Sunday.
Erdoğan said that the bombings, which occurred outside a soccer stadium two hours after the end of a match attended by thousands of people, was planned to cause maximum number of casualties.
"Nobody should doubt that with God's will, we as a country and a nation will overcome terror, terrorist organisations ... and the forces behind them," he said in the statement.
Although no one has claimed responsibility for the attack, Deputy Prime Minister Numan Kurtulmuş said that early indications point toward the outlawed Kurdistan Workers' Party (PKK). The group has carried out a three-decade armed insurgency, mainly in Turkey's largely Kurdish southeast.
The explosions, one large blast followed by a smaller one, occurred about 11 p.m. local time (3 p.m. EST), authorities informed. Police evacuated the area around the Besiktas' soccer arena following the first blast, which the interior ministry said was a car bomb attack.
The second explosion at a nearby park was carried out by a suicide bomber, reports said.
In a statement, Turkish President Recep Tayyip Erdogan said: "A terrorist attack has been carried out against our security forces and our citizens. It has been understood that the explosions after the Besiktas-Bursaspor football game aimed to maximise casualties. As a result of these attacks unfortunately we have martyrs and wounded."