Instagram co-founders resign from FB company

San Francisco : Instagram co-founders Kevin Systrom and Mike Krieger have announced they are leaving the photo-sharing app bought by Facebook six years ago, setting a new test for the parent company as it works to quell mounting turmoil.

“Mike and I are grateful for the last eight years at Instagram and six years with the Facebook team,” Systrom said in a statement late Monday, following a report. “We’re planning on taking some time off to explore our curiosity and creativity again.” Systrom, 34, created the app in 2010 with 32-year-old Krieger, now the outgoing “chief technical officer,” when they were students at Stanford University in the heart of Silicon Valley.