Hundreds of youths defied a Nigerian government lockdown and returned to the streets of Lagos, Africa’s most populous city, a day after violent clashes between the security forces and protesters.

The youths, who carried sticks and metal poles, chased cars that tried to evade barricades they’d erected along one on the Lagos’s main expressways. Several other streets were also sealed off, and the sound of sporadic gunshots echoed across the city. There was no sign of the police or army.

A Nigerian Red Cross Society official said at least two civilians were shot dead, adding to at least six other deaths in the country on Tuesday. Lagos state Governor Babajide Sanwo-Olu said 25 people were in the hospital after the incident, which he blamed on “forces beyond our direct control.” His government said it’s investigating what happened.

In a series of tweets on its Twitter page, the Nigerian Army labeled reports that soldiers had fired on protesters as fake news. Spokespeople for the army and the police didn’t immediately answer calls by Bloomberg seeking comment.

Yields on Nigeria’s 2032 dollar bonds climbed 15 basis points to 8.26% by 8:31 a.m. in London, after jumping 21 basis points on Tuesday.

While Nigeria has become accustomed to violent incidents in recent years, most have been confined to the country’s north, where President Muhammadu Buhari’s government is fighting an Islamist insurgency led by Boko Haram extremists. Large-scale deaths perpetrated by security forces in the country’s economic hub are almost unheard of.

The clashes in Lagos’s Lekki district came after Sanwo-Olu announced a 24-hour curfew to try and end disruptions in a region that’s home to more than 22 million people and houses the headquarters of Nigeria’s biggest banks and largest companies. Before Tuesday, protests that began on Oct. 5 had been largely peaceful, with the government issuing a directive to its security forces not to use violence.

The events in Lagos drew criticism from U.S. political leaders including presidential candidate Joe Biden, who urged Buhari to end the violent crackdown on protesters. Former Secretary of State Hillary Clinton echoed the call.

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