WASHINGTON — The Federal Reserve kept its benchmark interest rate at a record low near zero today and signaled its readiness to do more if needed to support an economy under threat from a worsening coronavirus pandemic.

The Fed announced no new actions after its latest policy meeting but left the door open to provide further assistance in the coming months. The central bank again pledged to use its “full range of tools to support the U.S. economy in this challenging time.” The economy in recent weeks has weakened after mounting a tentative recovery from the deep pandemic recession in early spring.

Several Fed officials have expressed concern that Congress has failed so far to provide further aid for struggling individuals and businesses. But the Fed’s policy statement, issued after a two-day meeting, made no mention of lawmakers’ failure to act.

A multi-trillion-dollar stimulus, enacted in the spring, had helped sustain jobless Americans and ailing businesses but has since expired. The failure of lawmakers to agree on any new rescue package has clouded the future for the unemployed, for small businesses and for the economy as a whole. There is some hope, though, that a logjam can be broken and more economic relief can be enacted during a post-election “lame-duck” session of Congress between now and early January.

“The outlook for the economy is extraordinarily uncertain,” Chair Jerome Powell said at a news conference.

The central bank has been buying Treasury and mortgage bonds to hold down long-term borrowing rates to encourage spending. And it has kept its key short-term rate, which influences many corporate and individual loans, near zero. Some economists think the policymakers’ next move will be to expand its bond buying effort, which is intended to boost the economy by lowering longer-term borrowing rates.

The Fed’s latest policy meeting coincided with an anxiety-ridden election week and an escalation of the virus across the country. Most economists warn that the economy cannot make a sustained recovery until the pandemic is brought under control and most Americans are confident enough to return to their normal habits of shopping, traveling, dining and congregating in groups.

“The recent rise in COVID-19 cases both here and abroad is particularly concerning,” Powell said at the news conference. “All of us have a role to play, to keep appropriate social distance and to wear masks in public.”

The central bank’s policy statement was approved on a 10-0 vote. Robert Kaplan, president of the Federal Reserve Bank of Dallas, who had dissented at the previous meeting, voted with the majority this time. Another dissenter in September, Neel Kashkari, head of the Minneapolis Fed, was absent, with his alternate, Mary Daly of the San Francisco Fed, approving the statement.

The statement was nearly identical to the one the Fed issued in September. At that meeting, it adopted a policy goal change it had made in August to keep rates low for some period of time even after inflation hits its 2% annual target. The reason was to allow the Fed to supply a longer boost to the economy and for unemployment to fall further before the policymakers begin to worry about inflation.