Angela Kinsey and Warren Lieberstein
Mark Sullivan/WireImage
"Angela and Warren are taking some time apart to figure out what is best for [daughter] Isabel and for their relationship," says Kinsey's rep Tess Finkle.
The rep adds that the separation is amicable, saying, "They continue to be friends and spend time together with their daughter."
The pair welcomed Isabel Ruby, their first child together, in May 2008.
Kinsey, 37, will have plenty of support at work: She is best friends with co-star Jenna Fischer, and Isabel's uncle Paul Lieberstein is also a co-star on the hit NBC show.
• Reporting by ULRICA WIHLBORG
