MOSCOW - Moscow police said they did chemical tests at the office of the BP oil company Tuesday after employees reported what was termed suspicious mail.
In London, BP spokesman Tony Odone said all BP staff members were well and none were made ill.
The Interfax news agency said police were called to the BP office when employees suffered headaches, rashes and felt a stinging in their eye after handling mail that arrived from Houston, Texas.
The Emergency Situations Ministry said there had been one report of a worker made sick, but that the employee now felt well.
Odone said the company's Moscow office had received a parcel from Houston "which had a substance on the outside of the package which is now being tested by the authorities.
"We are now waiting for the results," spokesman Toby Odone said. He didn't specify what the substance was or what it looked like.
Police experts were testing the air and the mail for chemicals, but found no powder or liquid inside the envelopes, Moscow police spokesman Pavel Klimovsky told The Associated Press.