EAST LONDON (South Africa), July 6 —South African mourners gathered in the coastal city of East London today to grieve the still-mysterious deaths of 21 teenagers in a poorly ventilated local tavern 10 days ago.

Dressed in black, they sung and danced to solemn gospel songs in front of 19 of the victims' coffins. All were empty, officials at the funeral parlour said, as police were still investigating the deaths.

The remaining two were buried separately by their families. Some mourners broke down and wept, while others hung their heads solemnly. President Cyril Ramaphosa was expected to attend.