A car bomb attack at a police station has killed four people and injured up to 10 people, while the city's U.S. consulate has also come under fire, news agencies have reported.
Reuters, quoting Turkey's Dogan news agency, reported that at a police station in the Istanbul neighborhood had been rocked by a blast early on Monday morning. The agency, quoting the Istanbul's governor's office, added that three attackers and a police officer had been killed in an exchange of gunfire following the explosion.
Istanbul police headquarters confirmed to Dogan that three police officers and seven civilians were wounded in the blast, but gave no death toll.
Al Jazeera said the blast struck at about 1am local time on Monday morning in a quiet part of Istanbul, adding that there was no immediate claim for the attack.