A Florida man charged with sending pipe bombs to prominent critics of President Donald Trump is expected to plead guilty next week.

A notice entered in the case file of Cesar Sayoc shows a plea hearing has been scheduled for next Thursday in New York.

Sayoc faces charges carrying a potential penalty of life in prison. It was not known which charge or charges the plea would involve.

Sayoc was set to go to trial in July on charges that he sent 16 improvised explosive devices through the U.S. mail to victims across the country. None exploded.

Authorities say he targeted numerous Democrats, critics of the Republican president and CNN, heightening tensions before midterm elections.

Comment was requested Friday in an email to defense lawyers and a call to prosecutors.