The 25 people arrested while protesting at TransCanada's Northeast Regional Office in Westborough on Monday were placed on pre-trial probation for three months today, according to the Westborough District Court criminal clerk's office.

The defendants also were ordered to stay away from the TransCanada office, at 110 Turnpike Road, Suite 203, according to the clerk's office.

More than 100 opponents of the proposed Keystone XL pipeline protested and sung at TransCanada shortly before 11 a.m. Monday.

Police arrested 25 members of the group who had handcuffed themselves together, and charged them with trespassing and disorderly conduct, Police Chief Alan Gordon said in a press release after the incident.

Police arrested:

• Deborah J. Bernstein, 68, of 60 Pinedale Ave., Billerica
• Rachel Soule, 22, of 69 Conwell Ave., Apt. 2, Somerville
• Eli Gerzon, 29, of 76 Bartlett Ave., Arlington
• Claire Sowa, 19, of 230 Fenway, Boston
• Joshua G. Krieble, 20, of 20 Evans Way, Boston
• Lisa Young, 24, of 8 Portland St., Apt. 201, Worcester
• Mark Files Schwaller, 27, of 7 Bynner St., Jamaica Plain
• Levon A. Chorbajian, 70, of 79 Gray St., Billerica
• Peter H. Malagodi, 38, of 108 Readville St., Hyde Park
• Krista L. Shugart, 20, of  152 Green Road, Sparta, N.J.
• Sophie Robinson, 24, of 23 Harrison St., Apt. 2, Somerville
• William Pearl, 20, of 85 Packard Ave., Apt. 212LH, Medford
• Brynn Nicole Daniels, 21, of 537 Pat Haven Drive., Pittsburgh, Pa.
• Daniel L. Jubelirer, 20, of 6007 Hathaway Lane, Chapel Hill, N.C.
• Heather L. Marsh, 19, of 88 Brown St., Pittsfield
• Anna M. Lello-Smith, 19, of 35 Woodlawn Ave., Northampton
• Rachel A. Bishop, 21, of 288 Williams St., Providence, R.I.
• Anna Shireman-Grabowski, 19, of P.O. Box 3794, Middlebury, Vt.
• Samuel Koplinka-Loehr, 21, of 124 Crest Lane, Ithaca, N.Y.
• Christopher Corrigan, 21, of 2020 Ridgefield Court, Rochester Hills, Mich.
• Molly P. Pearlman, 19, of 15 Leatherstocking St., Cooperstown, N.Y.
• Gregory D. Reinauer, 28, of 110 Longsdale St., Dorchester
• Jay A. Saper, 22, of 302 Weybridge St., Middlebury, Vt.
• Lucy Whipps, 20, of 9038 North Fortune Ave., Portland, Ore.
• John M. Tabor, 18, of 432 East 9th St., Apt. 2, New York, N.Y.