A South St. Paul man was charged Thursday with threats he made toward St. Paul police officers and a state trooper on Twitter after he received a speeding ticket.

Harrison Rund, 20, was charged with felony terroristic threats in Dakota County District Court after he tweeted threats to kill officers, some of which were directed to the St. Paul Police Foundation and the St. Paul Police Department's Twitter accounts.

The Twitter posts made from Rund's @Tha_Answer23 account included "they don't call me the cop killer for no reason," "im gonna kill 5 police officers today," and "im literally thinkin about just startin to hunt and kill cops."

In one tweet, which read "throw a grenade in the room, watch all you coppers kaboom," a photo is attached of St. Paul police being led by a training officer, according to the complaint. In some of the tweets, Rund refers to being pulled over by a state trooper the night before.

Rund was arrested at his South St. Paul home Tuesday night. He told police that he said some things that he shouldn't have said on Twitter because he had a bad experience with authorities.

According to the complaint, Rund was stopped by the Minnesota State Patrol at 1:29 a.m. Tuesday in St. Paul. Authorities say he was given a speeding ticket.

Rund admitted to making the comments on Twitter and acknowledged that there were photos of him on his Facebook account holding what appeared to be a revolver, but what he said was really a toy gun.

"It was a surprise to us that a person would openly threaten to kill five people," said Sgt. Paul Paulos, a St. Paul police spokesman who helps manage the department's Twitter account.

Police take threats on social media seriously, Paulos said.

He added that he hasn't seen threats such as Rund's directed at St. Paul police before on Twitter, but that sometimes residents tweet general criticisms to the department's Twitter account.

"This guy overstepped his boundaries," Paulos said of Rund.

"Threats to harm police or law enforcement officials are always taken seriously and will not be tolerated," Dakota County Attorney James Backstrom said in a media release. "By this charge we are alleging that these threatening comments were made in reckless disregard of the risk of causing fear to law enforcement officers and the community."

Nicole Norfleet • 612-673-4495 Twitter: @stribnorfleet