Concern is growing over a country's economic situation. American investors, particularly private equity funds, hold a significant portion of the country's debt. The amount held by these investors is between 3% and 4% of the total debt.

Further details about the situation are available from the source. The level of concern and the potential implications are not specified, but the involvement of American investors is a key aspect of the issue.

The source provides more information about the economic situation and the concerns surrounding it. For a more detailed understanding, readers can refer to the original source.