HOUSTON — Authorities are investigating the discovery of what appears to be a fetus in the bathroom of a Continental Airlines plane that arrived in Houston on a flight from New York’s LaGuardia Airport.

FBI Special Agent Shauna Dunlap said that while the plane was being cleaned about an hour after the plane landed Sunday, the cleaning crew found the apparent fetus. The medical examiner’s office will do an autopsy to determine if it was viable.

Dunlap said that if it is determined that a crime occurred, then the FBI will work with Houston police to determine where it occurred and continue from there.