Pacific Fleet spokesman Jon Yoshishige said no timetable has been set for the investigation into the U.S.S. San Francisco accident, and he refused to identify the officer leading the investigation.

"In general, they will interview crew members, go over all the evidence and draw some conclusions," Yoshishige said.

Additionally, the team will determine the cost of the damage and how long it might take to repair the vessel.

"We will get all of that in one big lump at the end of the investigation," he said.

The submarine was traveling at a high rate of speed when it "ran aground." It ran into an underwater mountain. Yoshishige said the accident occurred about 350 nautical miles south of Guam on its way to a port call in Brisbane, Australia.

"During their under way period, they try to stop at ports when possible," Yoshishige said.

The San Francisco, designated SSN-711, was the 24th boat built of it kind. It was commissioned April 24, 1981, and has one nuclear reactor, which was not damaged in the accident. It also carries a complement of Tomahawk precision guided missiles. The sub, whose home port is Apra Harbor, Guam, has a crew of 127 officers and seamen and is valued at more than $900 million.