The body charged with identifying threats to US financial stability has raised fund redemptions as an area of concern, echoing worries voiced by UK regulators late last week.

In an annual report on its activities, the US Treasury Department's Financial Stability Oversight Council said member agencies - which include the US Securities and Exchange Commission, Federal Reserve and Commodity Futures Trading Commission - are monitoring the growth of ETFs and bond mutual funds, including "how incentives to redeem funds may increase the risk of fire sales or pose other risks to financial stability".