Actresses Nia Vardalos (“My Big Fat Greek Wedding”) and Demi Moore were linked to an online chain of Twitter posts that ultimately led to Florida authorities intervening Friday when an 18-year-old man threatened to commit suicide.

Moore’s Twitter account, mrskutcher, was among those responding to a message from a teen threatening to hang himself in his front yard in Casselberry, Fla. Moore – with more than 2.5 million followers – and husband Ashton Kutcher are active on the social network.

Vardalos’ eponymous account included a message that she had called a suicide hotline and been connected to Florida police. “I gave his name+city. They went to home, helped him,” one message read.

The Seminole County Sheriff’s Office said authorities received two calls around 2:30 a.m. Both callers reported the suicide threat on Twitter; there was no record of the callers’ names, Lt. Sonia Pisano said.

Deputies went to a home and took the man to a hospital, Pisano said.

The teen’s mother told a deputy that her son “was very emotional and diagnosed with obsessive compulsive disorder,” according to a report by the sheriff’s office. Her son was sitting at his computer desk crying when he told the officer he “did not know what to do with himself without help” and admitted to posting the tweet.

The man was then placed in protective custody.