Federal investigators are reportedly probing whether aides to Ward 7 Councilwoman Yvette Alexander sought a bribe from prospective city contractors in exchange for her support on the District's lottery deal.

The Associated Press reported Monday that a pair of aides asked Warren Williams Jr., a local developer who submitted a bid for the lucrative contract, for cash during discussions about the deal. One staff member allegedly sought $20,000.

Alexander denied the allegations to the AP and on Twitter. On the social media site, she said AP identified Ronald Moten, a longtime political adversary, as the source of the allegation.

Moten denied Alexander's claim in a Twitter post of his own.

The reported review is a part of a larger investigation by a federal grand jury that is examining whether any crimes took place during the lottery procurement process. The Washington Examiner first reported in July that the grand jury had issued subpoenas that referenced federal anti-bribery laws.

Alexander is not the only city lawmaker who has become entangled in the investigation: Ward 1 Councilman Jim Graham's actions are also the subject of scrutiny, and investigators have reportedly been probing the conduct of at-large Councilman Michael Brown.

Both men have denied any wrongdoing.