the hole flooded the ship 's port side .
jeff stutzman , an ex - information warfare specialist in the navy who works at a cyber threat intelligence company , told mcclatchy that “ there ’s something more the destroyer uss john mccain has arrived at changi naval base in singapore after a collision with a civilian oil tanker .
navy divers are on scene at changi and further assessing damage .
it was the second deadly mishap that occurred in the pacific in the past three months .
the us navy ordered an investigation monday into its entire 7th fleet , based in the pacific , after the uss john s mccain was involved in a run - in with an oil tanker near singapore .
adm. john richardson tweeted that the navy will lead the investigation .
learn more the collision of a second us warship this year points to the possibility of cyber espionage , an expert has warned .
ten sailors remain missing and five were medically evacuated in the second collision in two months involving a u.s. navy destroyer and a civilian tanker , .
richardson made clear that there is no evidence of a hacking at this point , but some cyber experts have raised to possiblity given the location of the warships .