The 20 worst terrorist attacks of 2017, by number of fatalities

The 20 worst terrorist attacks by number of fatalities 2017 The statistic shows the 20 worst terrorist attacks of 2017, by number of fatalities. The worst terrorist attack in 2017 occurred on October 14, 2017, was carried out by Al-Shabaab in Mogadishu, Somalia, and caused 588 fatalities.
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City, country (date), organisationNumber of fatalities
Mogadishu, Somalia (Al-Shabaab)
(14/10/2017)
588
Beir Al-Abd, Egypt (Sinai Province of the Islamic State)
(24/11/2017)
311
Mosul, Iraq (ISIL)
(17/3/2017)
230
Tal Afar, Iraq (ISIL)
(4/6/2017)
200
Mosul, Iraq (ISIL)
(1/6/2017)
163
Brak, Libya (Misrata Brigades)
(18/5/2017)
141
Alindao, Central African Republic (Union for Peace in Central Africa)
(8/5/2017)
133
Qaryatayn, Syria (ISIL)
(2/10/2017)
128
Aleppo, Syria (Jaysh Al-Islam)
(15/4/2017)
127
Bangassou, Central African Republic (Anti-Balaka Militia)
(13/5/2017)
108
Mosul, Iraq (ISIL)
(21/6/2017)
100
Kabul, Afghanistan (IS - Khorasan Chapter)
(31/5/2017)
93
Sehwan, Pakistan (IS - Khorasan Chapter)
(16/2/2017)
91
Af Urur, Somalia (Al-Shabaab)
(8/6/2017)
77
Deir Ez-Zor, Syria (ISIL)
(4/11/2017)
76
Gardez, Afghanistan (Taliban)
(17/10/2017)
74
Zaki Biam, Nigeria (Fulani Extremists)
(20/3/2017)
73
Gomal District, Afghanistan (Taliban)
(2/8/2017)
72
Mirza Wulang, Afghanistan (Taliban)
(3/8/2017)
72
Jibi, Nigeria (Boko Haram)
(25/7/2017)
69
City, country (date), organisationNumber of fatalities
Mogadishu, Somalia (Al-Shabaab)
(14/10/2017)
588
Beir Al-Abd, Egypt (Sinai Province of the Islamic State)
(24/11/2017)
311
Mosul, Iraq (ISIL)
(17/3/2017)
230
Tal Afar, Iraq (ISIL)
(4/6/2017)
200
Mosul, Iraq (ISIL)
(1/6/2017)
163
Brak, Libya (Misrata Brigades)
(18/5/2017)
141
Alindao, Central African Republic (Union for Peace in Central Africa)
(8/5/2017)
133
Qaryatayn, Syria (ISIL)
(2/10/2017)
128
Aleppo, Syria (Jaysh Al-Islam)
(15/4/2017)
127
Bangassou, Central African Republic (Anti-Balaka Militia)
(13/5/2017)
108
Mosul, Iraq (ISIL)
(21/6/2017)
100
Kabul, Afghanistan (IS - Khorasan Chapter)
(31/5/2017)
93
Sehwan, Pakistan (IS - Khorasan Chapter)
(16/2/2017)
91
Af Urur, Somalia (Al-Shabaab)
(8/6/2017)
77
Deir Ez-Zor, Syria (ISIL)
(4/11/2017)
76
Gardez, Afghanistan (Taliban)
(17/10/2017)
74
Zaki Biam, Nigeria (Fulani Extremists)
(20/3/2017)
73
Gomal District, Afghanistan (Taliban)
(2/8/2017)
72
Mirza Wulang, Afghanistan (Taliban)
(3/8/2017)
72
Jibi, Nigeria (Boko Haram)
(25/7/2017)
69
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The statistic shows the 20 worst terrorist attacks of 2017, by number of fatalities. The worst terrorist attack in 2017 occurred on October 14, 2017, was carried out by Al-Shabaab in Mogadishu, Somalia, and caused 588 fatalities.
Show more
Release date
December 2018
Region
Worldwide
Survey time period
2017
Supplementary notes
Terrorism is the systematic use of terror, especially as a means of coercion. In the international community, however, terrorism has no universally agreed, legally binding, criminal law definition. Common definitions of terrorism refer only to those violent acts which are intended to create fear (terror), are perpetrated for a religious, political or ideological goal, and deliberately target or disregard the safety of non-combatants (civilians).
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