I can't find any further news on this, specifically the following is of interest: "Several such balls have dropped in southern Africa, Australia and Latin Amer

I can't find any further news on this, specifically the following is of interest: "Several such balls have dropped in southern Africa, Australia and Latin America in the past twenty years, authorities found in an Internet search." I haven't heard of this and have they identified what the origin of the other "several such balls" was?