Three young Komodo dragons have gone missing from a zoo in Indonesia.
It's thought they might have climbed out of their cage - but no-one is really sure what has happened to them.
Komodo dragons are the world's largest monitor lizards, and the missing reptiles are all about a year old and measure between 50cm and a metre long.
Zookeepers are warning people in Indonesia to watch out for the missing lizards, as they can move quickly and have a poisonous bite.
Agus Supangkat, from Surabaya Zoo, said: "We're worried the Komodo dragons have escaped.
"They could have been eaten by predators, stolen or escaped.
"The zookeepers have said they didn't take them. The police are still investigating."