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Civilians evacuate from the scene of an explosion in KM4 street in the Hodan district of Mogadishu. Feisal Omar/REUTERS

A deadly vehicle bombing in Somalia’s capital, Mogadishu, Saturday left at least 300 people dead and almost as many injured, according to CNN.

The bombing targeted a crowded Mogadishu street. Somalia’s government is blaming al-Shabab, an al-Queda linked extremist group, but no group has yet claimed responsibility for the attack.

Somalia has put out a plea for international help, and according to the Associated Press Monday, at least 70 people were evacuated to Turkey for medical care.

It is one of the deadliest terror attacks ever in Africa.

Al-Shabab is one of Africa’s most violent Islamic extremist groups and has vowed to step up terror attacks after the Somali government and President Donald Trump have vowed new military efforts to stop the group.

“This is really horrendous, unlike any other time in the past,” said Dr. Mohamed Yusuf, the director of Medina hospital to the AP.

Somalia’s President, Mohamed Abdullahi Mohamed, declared three days of mourning.

Mogadishu is a frequent target of Al-Shabab attacks, the terror group has a strong presence in many rural areas of the country. Al-Shabab has been fighting the Somali military, and African Union forces over areas the group controls in Somalia. The U.S. military has increased its drone strikes of the terror organization this year.