A dead, badly decomposed sperm whale is drifting off the Kona coast, and officials warn it's still dangerous to anyone in the water nearby.

• The whale carcass was spotted near Kona and towed farther offshore after it drifted toward Honokohau Harbor.
• It's already falling apart, with pieces breaking off, and that's pulling in large numbers of sharks.
• Hawaii's Department of Land and Natural Resources warns the remains could still wash ashore.
• People are told to stay away from the carcass and the surrounding water.

Outlook: Officials will keep monitoring the carcass, but shark activity in the area is likely to continue until it fully decomposes or washes ashore.