Washington: The top US commander in Afghanistan has been summoned to Washington to explain derogatory comments about President Barack Obama and his colleagues, administration officials said Tuesday.

Gen. Stanley McChrystal had earlier apologised for an interview in which he said he felt betrayed by the man the White House chosen to be his diplomatic partner, Ambassador Karl Eikenberry.

The article in this week's issue of Rolling Stone depicts Gen. Stanley McChrystal as a lone wolf on the outs with many important figures in the Obama administration and unable to convince even some of his own soldiers that his strategy can win the war.

In Kabul on Tuesday, McChrystal issued a statement saying: "I extend my sincerest apology for this profile. It was a mistake reflecting poor judgment and should never have happened."

In Rolling Stone, McChrystal is described by an aide as "disappointed" in his first Oval Office meeting with an unprepared President Barack Obama. The article says that although McChrystal voted for Obama, the two failed to connect from the start.

Obama called McChrystal on the carpet last fall for speaking too bluntly about his desire for more troops.

"I found that time painful," McChrystal said in the article, on newsstands Friday. "I was selling an unsellable position."

Obama agreed to dispatch an additional 30,000 US troops to Afghanistan only after months of study that many in the military found frustrating.

And the White House's troop commitment was coupled with a pledge to begin bringing them home in July 2011, in what counterinsurgency strategists advising McChrystal regarded as an arbitrary deadline.

McChrystal said Tuesday, "I have enormous respect and admiration for President Obama and his national security team, and for the civilian leaders and troops fighting this war, and I remain committed to ensuring its successful outcome."

In Brussels on Tuesday, a Nato spokesman called the article "rather unfortunate, but it is just an article."

The spokesman added that Nato Secretary-General Anders Fogh Rasmussen "has full confidence in Gen. McChrystal as the Nato commander, and in his strategy."