At least 35 people were killed and 40 wounded in a "terror" attack in Istanbul on Sunday when at least one gunman reportedly dressed as Santa stormed a nightclub where partygoers were celebrating the New Year.
The attack was the latest in a year that has seen Istanbul and other Turkish cities rocked by a string of attacks blamed on Islamic State jihadists and Kurdish militants.
Following is a list of the worst attacks in Turkey in 2016:
Russia's ambassador to Turkey, Andrei Karlov, is shot dead at an Ankara art gallery by an off-duty policeman who claims he is acting to avenge the conflict in Syria and in particular the battered city of Aleppo.
December 17: 14 soldiers are killed and dozens of other people wounded in a suicide attack targeting a military bus in the central city of Kayseri. The Kurdistan Freedom Falcons (TAK), seen as a radical offshoot of the outlawed Kurdistan Workers' Party (PKK), claim responsibility.
Forty-four people are killed, mainly police officers, and 166 wounded when twin bombings struck Istanbul after a home football match hosted by top side Besiktas. TAK claims it was behind the attacks.
November 24: A car bombing in the southern city of Adana kills two people and injures 33.
November 4: Nine people, including two policemen, are killed in a car bombing at a police station in Diyarbakir, the main city in Turkey's Kurdish majority southeast. It is claimed by Islamic State and then TAK.
October 9: Eighteen people are killed when a van explodes near a police post in the southeastern district of Semdinli, a bombing blamed on the PKK.
August 26: 11 police officers are killed in a suicide car bombing in Cizre, a mainly Kurdish southeastern town on the Syrian border, which was claimed by the PKK.
August 20: 57 people, 34 of them children, die in an IS-linked bomb attack on a Kurdish wedding in the Turkish city of Gaziantep near the Syrian border. President Recep Tayyip Erdogan blames the IS group.
47 people are killed, including foreigners, and over 200 injured in a triple suicide bombing and gun attack at Istanbul's Ataturk airport. There is no claim of responsibility but authorities say evidence points to IS.
At least seven police officers and four civilians die when a bomb rips through a police vehicle near the historic centre of Istanbul. The TAK claims the attack and warns tourists to stay away.
Three Israelis and an Iranian are killed and dozens injured in a suicide bombing targeting Istanbul shopping thoroughfare Istiklal Caddesi. The authorities blame IS.
February 17: At least 28 people are killed and about 80 hurt in a suicide bombing targeting the Turkish military in Ankara. The attack is also claimed by TAK.
Twelve German tourists are killed and more than a dozen others wounded in a suicide attack by a Syrian bomber in Istanbul's Sultanahmet district, the ancient tourist heart of the city and home of the Blue Mosque. The prime minister said the bomber belonged to IS.
- In the bloodiest attack in Turkey's history, 103 people are killed and more than 500 wounded on October 10, 2015, in twin suicide bombings targeting a pro-Kurdish peace rally in Ankara. The prime minister says IS was the main suspect.