<p>The Islamic State group on Sunday vowed "revenge" over the killing of its former leader, calling on supporters to take advantage of war in Ukraine to stage attacks in Europe.</p>.<p>"We announce, relying on God, a blessed campaign to take revenge" over the death of Abu Ibrahim al-Qurashi and the group's former spokesman, an audio message attributed to the group and circulated on the Telegram messaging app said.</p>.<p>The group's new spokesman, Abu-Omar al-Muhajjir, also called on supporters to resume attacks in Europe, taking advantage of the "available opportunity" of "the crusaders fighting each other" -- in reference to Russia's invasion of Ukraine.</p>.<p>The militant group's previous leader died in early February when he detonated a bomb to avoid capture during a US raid in northwest Syria, the White House and US defence officials said.</p>.<p>On March 10, the group confirmed his death, along with the group's former spokesman, naming Abu Hasan al-Hashemi al-Qurashi as the new leader.</p>.<p>Little is known about the new leader, who is the jihadist group's third chief since its inception.</p>.<p>After losing their last territory under a military onslaught backed by the US-led coalition in March 2019, the remnants of IS in Syria mostly went into desert hideouts.</p>.<p>They have used such hideouts to ambush Kurdish-led forces and Syrian government troops. The jihadists also continue to mount attacks in Iraq.</p>.<p><strong>Check out the latest videos from <i data-stringify-type="italic">DH</i>:</strong></p>
<p>The Islamic State group on Sunday vowed "revenge" over the killing of its former leader, calling on supporters to take advantage of war in Ukraine to stage attacks in Europe.</p>.<p>"We announce, relying on God, a blessed campaign to take revenge" over the death of Abu Ibrahim al-Qurashi and the group's former spokesman, an audio message attributed to the group and circulated on the Telegram messaging app said.</p>.<p>The group's new spokesman, Abu-Omar al-Muhajjir, also called on supporters to resume attacks in Europe, taking advantage of the "available opportunity" of "the crusaders fighting each other" -- in reference to Russia's invasion of Ukraine.</p>.<p>The militant group's previous leader died in early February when he detonated a bomb to avoid capture during a US raid in northwest Syria, the White House and US defence officials said.</p>.<p>On March 10, the group confirmed his death, along with the group's former spokesman, naming Abu Hasan al-Hashemi al-Qurashi as the new leader.</p>.<p>Little is known about the new leader, who is the jihadist group's third chief since its inception.</p>.<p>After losing their last territory under a military onslaught backed by the US-led coalition in March 2019, the remnants of IS in Syria mostly went into desert hideouts.</p>.<p>They have used such hideouts to ambush Kurdish-led forces and Syrian government troops. The jihadists also continue to mount attacks in Iraq.</p>.<p><strong>Check out the latest videos from <i data-stringify-type="italic">DH</i>:</strong></p>