Derby, 10
th in the Championship, said they acted following a
"significant, unexpected and persistent decline in results, team unity and morale".
Rams chairman Mel Morris said: "We need a manager who shares our values and who is prepared to develop the team."
The club said they expect to make an announcement in relation to McClaren's successor "in the next few days".
Assistant manager Chris Powell and technical director Chris Evans have also left.
*Derby lost 3-0 away to second-placed Brighton on Friday (10 March) and are 10 points off the play-off places.
Steve McClaren has been sacked as Derby County manager for a second time !!
"significant, unexpected and persistent decline in results, team unity and morale".
Rams chairman Mel Morris said: "We need a manager who shares our values and who is prepared to develop the team."
The club said they expect to make an announcement in relation to McClaren's successor "in the next few days".
Assistant manager Chris Powell and technical director Chris Evans have also left.
*Derby lost 3-0 away to second-placed Brighton on Friday (10 March) and are 10 points off the play-off places.