At least eight children were killed and six others seriously injured in a drone attack on a birthday party in Haiti’s capital where an alleged gang leader was distributing gifts, according to relatives and activists. Michelin Florville, 60, said the explosion killed two of his grandchildren, ages three and seven, and his 32-year-old son. The leadership of Haiti national police?” he asked. A spokesperson for Haiti’s national police did not immediately return a message seeking comment. The human rights group said several gang members have been killed in drone attacks since March.