Search continues for mass grave site from 1921 Tulsa race massacre

Archaeologists and dig crews have resumed the excavation of a suspected mass grave in Tulsa, Oklahoma, the site of one of the bloodiest episodes of racist violence in the US.

A white mob terrorised hundreds of black Americans during a nearly two-day massacre on 31 May 1921. Armed white men, backed by Oklahoma officials and law enforcement, shot at black residents, bombed buildings and set them ablaze, destroying 35 blocks of homes, businesses, churches and schools in the city's prosperous Greenwood neighbourhood, known as Black Wall Street.

Scores of families were left homeless, and at least 300 people were killed.

After a radar revealed a "large anomaly consistent with a mass grave" near Oaklawn Cemetery, the city agreed to launch the 1921 Tulsa Race Massacre Graves Inspection with the University of Oklahoma in March to find the remains of black residents killed in the event and determine the scale of the massacre that resonates nearly 100 years later.