Ben Wallace, Secretary of State for Defence of the United Kingdom, has said that transferring fighter jets to Ukraine "would not be the right approach", but there is no final decision on this matter yet.
"I've been involved with this for a pretty long time. And I've learned two things; never rule anything in and never rule anything out," Ben Wallace told reporters on the matter.
He said that while no "solid decision" had been made, he did not think it was the "right approach" for now to send jets.
"What's going to move on this conflict this year is going to be the ability for Ukrainians to deploy Western armour against Russia," he said.
The former prime minister has called today for providing more weapons for Ukraine, but the UK government has so far distanced itself from his comments.
Johnson, who is in Washington, supported providing Ukraine with all the types of weapons it needs, in response to a question about F-16 fighter jets.
"All I will say is that every time we have said it will be a mistake to give such and such an item of weaponry, we end up doing it, and it ends up being the right thing for Ukraine," Johnson said.