The Latest: Lawyer pledges to vigorously defend prosecutor

PHILADELPHIA (AP) — The Latest on corruption charges against Philadelphia District Attorney Seth Williams (all times local):

2 p.m.

The lawyer for embattled Philadelphia District Attorney Seth Williams says he'll vigorously defend the prosecutor against corruption charges.

Philadelphia lawyer Michael Diamondstein tweeted Tuesday that he's representing Williams.

A law enforcement official with direct knowledge of the investigation says the FBI and IRS will announce corruption charges Tuesday against Williams. The official wasn't authorized to release the information ahead of an afternoon news conference and spoke to The Associated Press on condition of anonymity.

The charges come after a lengthy investigation into $160,000 in gifts that Williams failed to report, including a new roof, a $2,700 couch and luxury vacations.

Williams is expected to surrender to be arraigned Wednesday.

His spokesman says Williams isn't in the office Tuesday because he is spending time with his family, and had no further comment.

— Associated Press writer Maryclaire Dale contributed.

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12:55 p.m.

A law enforcement official with direct knowledge of the investigation says the FBI and IRS will announce corruption charges Tuesday against embattled Philadelphia District Attorney Seth Williams.

The official wasn't authorized to release the information ahead of an afternoon news conference and spoke to The Associated Press on condition of anonymity.

The charges come after a lengthy investigation into $160,000 in gifts that Williams failed to report, including a new roof, a $2,700 couch and luxury vacations.

Williams, the city's first black district attorney, announced last month he would not run for re-election this year. The 50-year-old Democrat said he showed poor judgment and regretted "mistakes in my personal life and in my personal financial life."

Williams has said he encountered financial problems amid a divorce and tuition costs for his children.

The AP left messages for Williams' spokesman and lawyer.

— Associated Press writer Maryclaire Dale contributed.