WASHINGTON — Federal health officials are extending the U.S. ban on cruise ships through the end of October amid reports of recent outbreaks of the new coronavirus on ships overseas.

The Centers for Disease Control and Prevention announced Wednesday that it was extending a no-sail order on cruise ships with the capacity to carry at least 250 passengers.

The CDC said surveillance data from March 1 through Sept. 29 shows at least 3,689 COVID-19 or COVID-like illnesses on cruise ships in U.S. waters, in addition to at least 41 reported deaths. It said these numbers are likely an underestimate.

It cited recent outbreaks as evidence that cruise ship travel continues to transmit and amplify the spread of the novel coronavirus, even when ships sail at reduced passenger capacities. It said it would likely spread the infection in the U.S. communities if operations were to resume prematurely.

“Recent passenger voyages in foreign countries continue to have outbreaks, despite cruise ship operators having extensive health and safety protocols to prevent the transmission of SARS-CoV-2 on board and spread to communities where passengers disembark,” the CDC said in a statement.