Piers Morgan revealed he has beefed up the security at his London home after receiving vile death threats via social media.
The 55-year-old star appeared on This Morning on Wednesday, and the conversation soon turned to online trolls.
"I’ve taken action over it. Twitter is what it is, but I think there is a line," Piers told Phillip and his co-host Holly Willoughby.
"When people come after me, that’s fine, but there's got to be a line and to have people actually make specific death threats to you and your family...
"I called the police, they were brilliant, they came round. I want to go through the process of finding out who it is and hold them accountable for issuing a death threat."
Piers continued: " Facebook - who own Instagram - they contacted me, they agreed to speak to the police, they’ve been helping the police and I want to see how this process works.
"I’m doing it, not really for me or other high profile people, we can take care of ourselves to a degree and afford the security, my place is like Fort Knox now thanks to the police, which I’m grateful for.
"But what about regular people who have to put up with this obscene stuff every day?"
At the time of receiving the threats, Piers shared a screenshot of messages in which he and his family, including son Spencer, were targeted.
Dad-of-four Piers was told he was a "marked man" and that calling the police wouldn't stop the people who wanted to "kill" him.
Spencer was also tagged and told to "watch his back" as threats were also made against Piers' wife Celia Walden.
Piers tweeted: "Another day, another death threat... ," before sharing the name of the account that had been sending him messages and asking his fans to help identity the person behind it.
"Anyone know who he is? Let’s see how big and tough he feels when I give him the exposure he deserves," he wrote.
He later added: "UPDATE: I’ve reported these death threats to @metpoliceuk and look forward to hearing back from them. I’m also keen to hear what steps @instagram @ Facebook are taking to identify the person who made the death threats on their platform & has now deleted their account."
This Morning airs weekdays at 10am on ITV.