The Office of the Privacy Commissioner of Canada is taking a close look at Facebook Inc. after the social network announced it had manipulated users’ news feeds for a study on emotional responses. “We will be contacting Facebook to seek further details related to this research and have been in touch with some of our international counterparts about the matter,” spokeswoman Valerie Lawton said in an email on Thursday. The study, done in conjunction with researchers from Cornell University and University of California and published in June, changed the content seen by 690,000 users for one week in January 2012 in an effort to measure the impact seeing emotionally-charged stories can have on ensuing Facebook posts. Earlier this week, Facebook chief operating officer Sheryl Sandberg said the study was part of the company’s “ongoing research” and had been “poorly communicated,” according to media reports of a speech she gave in New Delhi. "And for that communication we apologize. We never meant to upset you," she reportedly said. On Wednesday, the U.K. privacy commissioner announced its office was also looking into the study, according to a report from Reuters.