This is stated on the website of the British government.
It is stated that on June 5, the Prime Minister spoke to Ukrainian President Volodymyr Zelenskyy to update on progress and discussions held at G7 and NATO last week.
"The Prime Minister briefed Ukraine on the latest UK military equipment, including 10 self-propelled artillery systems and ammunition, which will arrive in the coming days and weeks," - the UK government said in a post.
On grain, leaders agreed on the importance of getting it out of Ukraine as soon as possible, and the Prime Minister said the UK was continuing to work closely with partners on the next steps and was ready to help in any way possible.
The leaders also discussed the cases of Ukrainian fighters of British origin who were captured by Russian forces in recent weeks.
Zelenskyy and Johnson also discussed Eurovision 2023, and the Prime Minister said the UK had asked the EBU to consider Ukraine’s proposals for the event.