Police arrested 22 people at a house party on Friday, Oct. 30, as part of their crackdown on underage drinking in town.

Officers responded to a call about a large fight on the front lawn of 421 Donald St. shortly after 12:30 a.m. The anonymous tip indicated there were 15 to 20 college-age people at the house, and there had been a party going on there all night.

When police arrived, they found a number of people outside and inside, many of them had been drinking alcohol. Officers who first arrived reported about 50 people inside the house.

“It was a large party,” said Sgt. Devon Kimball. He said many people left before police arrived.

The officers found that many people who had been drinking were younger than 21.

Partygoers 21 or older were not arrested. But police followed the town’s new policy of arresting all underage drinkers at a party. Bedford implemented the policy this summer.

In the past, and in many other towns, only hosts of an underage drinking party were charged while others were held in protective custody until their parents or guardians picked them up.

“I think it sends out a strong message that the Bedford Police Department’s policy is zero tolerance,” Kimball said.

A significant number of alcoholic beverages were seized and arrests were made.

The residents of the house, Michael T. Yacono, 20, and Thomas N. Oliveria, 20, both of Bedford, were arrested for facilitating an underage alcohol house party and prohibited sales of alcohol.

They were released on $750 personal recognizance bail with an arraignment date of Monday, Dec. 7, at 8 a.m., at Merrimack District Court.

The following people were issued a summons to appear at Merrimack District Court on Monday, Dec. 7, at 8 a.m. for unlawful possession of alcohol: Samantha Seamon, 20, of East Hampton, Conn.; Danielle Tunak, 20, of Shrewsbury, Mass.; Brock Weber, 19, of Bristol, Conn.; Ned Brady, 20, of Tiverton, R.I.; Juan Suarez, 20, of Goffstown; Anthony Ferguson, 20, of Brighton, Mass.; Adam Archidiacono, 20, of Lynnfield, Mass.; Matthew Shanahan, 19, of Westwood, Mass.; Giovanni Lorusso, 20, of Norwood, Mass.; Kelsey Dakoulas, 20, of Manchester; Helen D’Aprino, 20, of Woburn, Mass.; Amanda Horgan, 19, of Atkinson, Mass.; Michael Kaznowski, 19, of Berrington, R.I.; Michael Koulopoulos, 18, of Scituate, Mass.; Brian Poznanski, 20, of Nashua; Caitlin Heneghan, 20, of South Windsor, Conn.; Garret Gervais, 19, of Chelmsford, Mass.; Thomas Morgan, 20, of Greencastle, Penn.; Elizabeth Webster, 20, of Sandown; Bradley Shoemaker, 20, of Merrimack.

They were released to adults who were sober and over the age of 21.

Jillian Jorgensen contributed to this article.