An unnamed US official told The New York Times that the US is planning to work with allies to help transfer Soviet-made tanks to Ukrainian forces.
The US helped deliver tanks to Ukraine for the first time since Russia invaded the country.
Zelenskyy asked if the West was afraid of Russia given the discussions about supplying Ukraine with weapons.
Who runs the Euro-Atlantic community? Zelenskyy said it was impossible to defend the besieged city of Mariupol without a sufficient number of tanks, other armored vehicles and aircraft.
The official did not tell The Times which countries the tanks would be coming from or how many would be sent, but he did say that they would allow Ukraine to better defend the eastern Donbas region with long-range strikes on Russian forces.
The US rejected an offer from Poland to transfer Soviet-era warplanes to Ukraine, with the Pentagon saying it could pose serious concerns for the entire NATO alliance.