Heidi Klum is back on the market.
The supermodel and "America's Got Talent" judge has split from her bodyguard boyfriend, Martin Kirsten, after more than a year and a half of dating, People magazine reported. The two were first spotted together in August 2012 on an Italian vacation.
Klum has not commented about the report. The 40-year-old's relationship with Kirsten, 41, began shortly after she filed for divorce from her former husband, singer Seal. The pair were married from 2005 to 2012.
Klum, a mother of four children, is also severing ties with Kirsten professionally, with sources citing that Kirsten will no longer be working as a member of Klum's security staff.
Klum is best known as one of the world's most famous supermodels. In addition to her illustrious modeling career, Klum also serves as host and a judge on the reality series "Project Runway" and began serving as a judge on NBC's "America's Got Talent" in 2013.
(Pictured: Left - Heidi Klum appears with Martin Kirsten and her children at The Grove in Los Angeles, California on Dec. 21, 2013. Right - Heidi Klum appears at the 50th anniversary of Sports Illustrated Swimsuit Issue in Los Angeles, California on Jan. 14, 2014. Credit: Daniel Robertson / Sara De Boer / startraksphoto.com.)