Speaking before his departure to the G-20 summit in Indonesia on Sunday, Erdogan said the explosion on Istiklal Avenue was a “heinous attack” and its perpetrators would be punished.“Our people can rest assured that the culprits behind the attack will be punished as they deserve,” he said at a press conference, adding that initial information suggested “a woman played a part” in it.“It would be wrong to say this is undoubtedly a terrorist attack but the initial developments and initial intelligence from my governor is that it smells like terrorism,” Erdogan said.istiklal caddesi'ndeki patlama anı pic.twitter.com/3fM5KRQLWW— fırat (@firatfstk) November 13, 2022Other footage showed ambulances, fire trucks and police at the scene.Al Jazeera’s Sinem Koseoglu, reporting from Istanbul, said the explosion comes as a shock as there have not been any recent warnings over attacks in the city."