COPENHAGEN, July 30 (Reuters) - A group of bondholders in Intrum, Europe's largest debt collector, seeks to block a restructuring of the Swedish company's own 5.4 billion euro ($5.84 billion) borrowings, the Financial Times reported on Tuesday, citing unnamed sources.

Intrum's share price, which had risen on the announcement in June of an agreement with some bond holders, fell 8% by 0724 GMT on Tuesday.

Bondholders opposing the deal hold debt that matures next year, and were expecting imminent repayment, and were thus less inclined to back the restructuring deal than those whose bonds mature at a later time, the FT reported.

An Intrum spokesperson declined to comment on the report when contacted by Reuters.

Over half of Intrum's bondholders have signed a binding agreement with the company since the June announcement, the company said earlier this month.

On Tuesday, Intrum said it had extended a deadline for bondholders to sign up to the binding agreement to Aug. 19 from July 29. ($1 = 0.9241 euros) (Reporting by Stine Jacobsen, editing by Terje Solsvik)