There have now been at least 18 classified emails discovered on Anthony Weiner’s laptop, Judicial Watch reports.

According to the conservative watchdog group, five previously unreleased emails were among a batch of 147 documents related to Hillary Clinton aide Huma Abedin, which the State Department released last week.

Chris Farrell, director of investigations and research for Judicial Watch, said there is no confusion over the sensitivity of the emails.

“They were classified when they were written. They were classified when they were transmitted and they were classified when they were residents on the Weiner laptop,” he told told FOX Business’s Lou Dobbs.

Judicial Watch President Tom Fitton slammed former FBI Director James Comey for being aware of what was on the laptop but not disclosing it publicly.

"These are classified records that James Comey and his colleagues ... knew were on the Weiner laptop, but didn’t take seriously enough to pursue criminal charges against Abedin or Clinton for allowing this egregious abuse of trust that the American people placed in them," he said on Fox News's "Tucker Carlson Tonight" Thursday.

The cache includes documents sent from Abedin's "clintonemail.com" account as well as from her Blackberry. Comey told lawmakers earlier this year that he belives Abedin regularly forwarded emails to Weiner for him to print out so she could give them to Clinton. Judicial Watch had filed a lawsuit against the State Department requesting all official emails sent or received by Abedin on a non-state.gov email address. Weiner, a onetime Democratic congressman, began a 21-month prison sentence last month after being convicted of sexting a 15-year-old girl. Abedin has filed for divorce from Weiner, with whom she has a six-year-old son. (FoxNews.com)

"It wasn’t just low-level classified materials that were found in the Clinton email server," Fitton added, "but there were highly top-secret documents of the most secure type and it would have resulted in a criminal prosecution, I guarantee you, if you were anyone else but the Democratic nominee for president."