AKUMAL, Mexico - A family tragedy and a growing mystery in paradise.
An American couple and their two children found dead while on vacation in Mexico.
Authorities searching for answers about how they died.
An Iowa family Kevin and Amy Sharp -- along with their two kids -- Sterling and Adrianna -- were found dead in their vacation rental condominium on Friday in Akumal, Mexico near Tulum.
They were found a week after their family had last heard from them, prompting social media posts -- and worry in tiny Creston, Iowa.
The family, in a Facebook statement, said there was no foul play.
Mexican authorities said there was no trauma to the bodies.
Autopsy results are pending.
"Creston is a very tight-knit community, you know, we're a small community, 1,000 people everybody knows somebody who knows the people involved so it’s, it’s going to hurt for a while,” said Paul Ver Meer, the Creston Police Chief.
A new security alert was recently issued by the state department -- for that part of Mexico after an explosion on a tourist ferry in Playa Del Carmen.
Twenty-five people were injured -- including U.S. citizens.
Local media reported that a drug gang had taken credit for the blast.
With this young Iowa family dead -- fresh concern -- about travel to the spring break hotspot.