Reporter Kurt Eichenwald is taking a “short break” from Twitter after another user sent him a flashing image that allegedly triggered a seizure.

The Newsweek reporter appeared Thursday night on Fox News, where he engaged in a combative interview with host Tucker Carlson over his social media claims that Donald Trump had been hospitalized for mental illness in 1990.

Eichenwald claimed Friday afternoon on social media that the Twitter user @jew_goldstein posted a GIF that caused him to have a seizure due to his epilepsy, and he announced he would take a break from posting there while he and his lawyers built a case against the culprit, reported Mediaite.

Last night, for the second time, a deplorable aware I have epilepsy tweeted a strobe at me with the message "you deserve a seizure' on it…

# p #4_13 # ad skipped = true #

— Kurt Eichenwald (@kurteichenwald) December 16, 2016

# p #5_13 # ad skipped = true #

…it worked. This is not going to happen again. My wife is terrified. I am…disgusted. All I will be tweeting for the next few days are…

# p #7_13 # ad skipped = true #

— Kurt Eichenwald (@kurteichenwald) December 16, 2016

# p #8_13 # ad skipped = true #

Eichenwald, whose reporting has detailed Trump’s business conflicts with foreign governments, posted dozens of scattered tweets following the TV appearance but later deleted most of them.

He has filed a police report due to the online harassment, and he plans to subpoena Twitter so authorities can file criminal charges.

Twitter has suspended that user’s account.

Eichenwald also claimed that other Trump supporters posted threats against him and his children, which he says they’ve done in the past.