The Seattle Mariners have fired general manager Jack Zduriencik.

In a statement released Friday morning, Mariners president /COO Kevin Mather said: "We have reached the point when change of leadership of our baseball operations is needed for the Seattle Mariners to reach our goal of winning championships. We are very disappointed with the results this season, and are not satisfied with the current operation. The search for a permanent general manager will begin immediately, and while there is no deadline, we expect to have a new GM in place as soon as practical."

Added Mather: "We have great respect for Jack and his work ethic. He was an excellent representative of the Mariners both within the game of baseball and in the community. On behalf of the entire organization, I wish him and (his wife) Debbie all the best, and thank him for all his efforts."

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Mariners CEO Howard Lincoln said: "On behalf of our ownership group, I want to thank Jack for his loyalty and hard work over the years, and for the quiet dignity with which he has carried himself. During his tenure, Jack was dedicated to building a winning team, and at the same time, has embodied the Mariners commitment to the community by supporting many charities and causes, and making a difference in our community. We wish Jack and his lovely wife Debbie all the best."

Zduriencik was hired as GM in October 2008. Seattle has finished above .500 just once since then and hasn't reached the playoffs since the 2001 season. The Mariners are 59-69 this season.

Assistant GM Jeff Kingston will serve as the team's GM for the remainder of the 2015 season.