Boris Johnson has said he is "optimistic" people will be able to enjoy a summer holiday this year, as long as coronavirus can be kept under control.
The Prime Minister spoke about the issue during a visit to Batley, West Yorkshire.
He said: "I don't want to give too much concrete by way of dates for our summer holidays.
"I am optimistic - I understand the reasons for being optimistic - but some things have got to go right.
"The vaccine programme has got to continue to be successful.
"We have got to make sure we don't get thrown off course by new variants, we have got to make sure that we continue to keep the disease under control and the level of infections come down."
The Prime Minister said the rollout of the vaccination programme has been "phenomenal" but declined to be drawn on whether the Government would meet its targets.
He said: "I think it would be unwise to speculate at the moment. I think the NHS, the pharmacies, the volunteers, helped by the Army, they have done an outstanding job."
"The rollout has been phenomenal so far but it is still, relatively speaking, early days."
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Yesterday Health Secretary Matt Hancock also spoke about the issue of summer holidays.
During an appearance on the BBC’s Politics East programme Mr Hancock said: "In six months we'll be in the middle, I hope, of a happy and free Great British summer – I have a high degree of confidence that by then the vast majority of adults will have been vaccinated.
"I think we are going to have a great summer, but we will have a tough few months between now and then.”
