Timothy Nielsen.Photo: AP/Shutterstock

Timothy Nielsen

Police in Chicago have arrested a 57-year-old man on attempted murder charges after he allegedly ran down a crowd of people having a picnic in the city’s Logan Square neighborhood.

A press release from Chicago Police confirms that Timothy Nielsen is being held without bond on four counts of attempted murder.

The press release alleges that on Saturday at about 5:15 p.m., Nielsen “intentionally jumped a curb” on West Logan Boulevard and deliberately steered his pick-up truck “at a group of pedestrians gathered for a picnic.”

The woman sustained serious injuries after becoming briefly pinned beneath the vehicle. She has since been treated and released.

Nielsen was arrested at the scene, the press release states.

He also allegedly told a man to “Watch what I’m going to do” just prior to hopping in his red Ford F-150 and driving onto the grass, where the picnic was happening, prosecutors said in court.

Prior to allegedly driving into the crowd, Nielsen became “increasingly hostile” at the picnickers, who were celebrating a birthday, prosecutors said. The paper’s report indicates he allegedly ran over their bicycles and chairs before turning towards the partygoers.

Want to keep up with the latest crime coverage? Sign up forPEOPLE’s free True Crime newsletterfor breaking crime news, ongoing trial coverage and details of intriguing unsolved cases.

Prosecutors said Nielsen, who has past convictions for kidnapping and extortion, attempted to flee the area, but the truck wouldn’t move due to a large cooler that had become wedged beneath the vehicle, reportsthe Sun-Times.

Nielsen did not enter pleas Monday, and is due back in court May 10.

Information on his attorney was not immediately.

source: people.com