UPDATE 1-PNC Financial profit tops estimates on higher interest rates

(Adds details on results)

July 13 (Reuters) - PNC Financial Services Group Inc on Friday posted a quarterly profit that beat analysts' estimates, driven by higher net interest income and improved fee income.

Net income attributable to diluted common shares rose to $1.28 billion in the second quarter ended June 30, from $1.03 billion, a year earlier.

On a per share basis, the Pittsburgh-based regional bank earned $2.72, blowing past analysts' estimates of $2.58, according to Thomson Reuters I/B/E/S.

Net interest income rose 7 percent to $2.41 billion, helped by higher interest rates, which the U.S. Federal Reserve has raised four times since the second quarter of last year.

Non-interest income climbed 6 percent to $1.91 billion due to growth in asset management and consumer service revenue, which offset a decline in residential mortgages.

PNC Financial, one of the largest U.S. lenders by assets, said its loan portfolio grew 2.2 percent to $222.8 billion with commercial lending accounting for nearly 70 percent of total loans.

Total revenue rose 6.5 percent to $4.32 billion from $4.06 billion a year ago. (Reporting by Nikhil Subba in Bengaluru; Editing by Bernard Orr)