Bond: Letter containing anthrax reaches Kenya

Catherine Bond reports from Nairobi, Kenya.

(CNN) -- Kenya's health minister says an envelope sent from Atlanta to a private Kenyan citizen has tested positive for anthrax spores.

Authorities are investigating two other envelopes containing white powder, including one sent to a U.N. office in Nairobi.

Meanwhile, three men convicted in the suicide truck bombings of the U.S. Embassies in Nairobi, Kenya, and in Dar es Salaam, Tanzania, on August 7, 1998, are to be sentenced today.

CNN's Nairobi Bureau Chief Catherine Bond spoke to CNN via videophone with the latest developments.

CATHERINE BOND: Kenya's minister of health has said that the letter posted in Atlanta, Georgia, on the 8th of September contained spores of anthrax and was opened here on the 11th of October by a private Kenyan citizen whom they haven't yet identified. Four members of his family have been exposed and they are being watched while the Kenyan Ministry of Health tries to determine which strain of anthrax it is, so that it knows what sort of antibiotics to give to his family members. That's one positive identification. There's two other envelopes which have been posted and received here in Kenya that have also contained a white powdery-like substance ... these other two are still under investigation by the Kenyan medical institute.

CNN: I know its very early to determine this, but we should make note of the fact that four men who have been convicted of the bombings in Africa will be sentenced today. What is the talk there about any potential linkage?

BOND: I think perhaps Kenyans are less surprised than you might think by news that anthrax appears to have popped up here because they have been exposed to terrorism before. As you say, (there was the) bombing of the U.S. Embassy here in Nairobi in August 1998, and the sentencing is due today of a group of people who were indicted in that bombing and so people are waiting for that sentencing. It's expected to be a life sentence ... so there is that connection.