Washington ferry employees watching for suspicious passengers

Washington state ferry employees have been told to watch for suspicious passengers after an incident in which someone took some out-of-the-ordinary photos.

Washington State Patrol spokesman Bob Calkins in Olympia says the incident took place last month and he can't disclose details because it's still under investigation. He says it led to an internal memo to ferry employees asking them to be more alert.

Calkins says the photo-takers drew attention because they were behaving a little differently than commuters or tourists. He says no officer was available at the time to check them out, so the memo was sent. He says it's not a warning.

Any tips will be analyzed by the Washington Joint Analytical Center, a multi-agency center at the Seattle FBI office, that gathers information to look for security threats.

Calkins says the patrol and Coast Guard already provide security for state ferries because they could be a target for terrorism.