HONOLULU -- Workers at the offices of Planned Parenthood of Hawaii got a scare Tuesday morning when a clerk opened a suspicious letter.

Workers were evacuated from the building shortly before 8 a.m. after a clerk opened a letter and some white powder spilled out onto her hands and dress.

The clerk called 911 because of fears the powder could be anthrax.

"She sounded very, very upset, but said she felt otherwise OK. So, what the police will now do and hazmat, is try to identify that substance," said Annelle Amaral of Planned Parenthood of Hawaii.

"And it came up predominantly all carbohydrates, and the leading carbohydrate was non-dairy creamer," said Honolulu Fire Department Capt. Carter Davis.

Workers were let back into the building a little after 9 a.m.

Planned Parenthood officials said the letter had a postmark from Colorado, but didn't have a return address.

Even though the powder was not anthrax, the letter is being turned over to the FBI and postal authorities for further investigation.