WASHINGTON, July 1 (Xinhua) -- The U.S. said on Thursday it is disappointed that the suspected spy arrested in Cyprus was released on bail, who disappeared afterwards.

"We are disappointed that Christopher Metsos was released on bail following his arrest in Cyprus. As we had feared, had been given unnecessarily the chance to flee, he did so," U.S. State Department spokesman Philip Crowley said.

"But I'm sure we will be in touch with the Cypriot government. I'll see if we have already launched, or filed our concern and our protest," Crowley said.

Robert Christopher Metsos, 55, a Canadian passport holder and alleged Russian spy wanted by the United States, is seen in a photo released by the Cyprus Police Department July 1, 2010.

U.S. Justice Department announced on Monday that authorities had busted a spy ring suspected of conducting long-term, "deep- cover" espionage for Moscow.

Ten suspects have been arrested in the U.S. The other suspect, a Canadian man arrested in Cyprus, went missing on Wednesday, just over 24 hours after a judge let him free on bail.