Burger King CEO Brad Blum announced the resignation of chain president Bob Nilsen in a voicemail to company employees yesterday afternoon.

Though Burger King spokesman Rob Doughty declined to speculate why Nilsen resigned after only 13 months at the position, the company did provide QSR with a text version the voicemail Blum sent to the entire Burger King system.

“Hello team. It is with mixed emotions that I announce that Bob Nilsen has resigned from BURGER KING. I would like to thank Bob for all his contributions over the past year in the operations area most importantly for the great team he has assembled.

“Going forward, we will remain relentlessly focused to realize success against our four most important strategic initiatives.

“I will make an announcement later this week to communicate the new Operations leadership structure. Thank you for your support as we continue to build Operations Excellence in each of our restaurants. Please join me in wishing Bob much continued success in his career.”

The consensus among business media outlets appears to be that Nilsen’s departure is linked to declining sales at the nation’s number-two burger chain. Burger King representatives offered no comment.

News, Burger King