Rep. Michael McCaul (R-Tex.), chairman of the House Homeland Security Committee, said Monday that the missing Malaysia Airlines plane could be parked somewhere unknown and potentially used as a giant bomb.

McCaul said on Fox News that he is convinced the plane was hijacked. From there, he said it either crashed somewhere or is still operational and potentially very dangerous.

"What would be the purpose behind crashing it into the ocean?" McCaul said. "So the other possible theory that we're looking at is it could have landed somewhere, filled with explosives and then sent somewhere else to cause some great damage."

McCaul added: "And I think we have to look at all possibilities."

The search for the plane continues, nine days after it first went missing.