'Silent coup' rumors swirl as Zardari leaves Pakistan

Anjum Naveed / AP

Pakistan's President Asif Ali Zardari listens to a reporter at a press conference in Rawalpindi, Pakistan, in this picture taken on Aug. 15, 2010.

Updated at 6:06 a.m. ET

ISLAMABAD -- Pakistani President Asif Ali Zardari has traveled to Dubai after falling ill, fuelling rumors Wednesday of his possible resignation.

Close associates of the president told the Associated Press he is currently "unwell," but did not provide specifics. His condition did not appear to be life-threatening, they said, speaking on condition of anonymity because of the sensitivity of the issue.

Zardari's office said he was undergoing routine medical tests and a check-up "as planned."

However, Reuters cited a source in Dubai as saying that Zardari had suffered a minor heart attack.

"Two days ago, he had chest pain," the source added.

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