The Vaccines Minister, Nadhim Zahawi says he is "confident" the UK will hit its "tough target" of offering everybody over 50 a coronavirus jab by May.

Speaking to Sophy Ridge on Sunday, Nadhim Zahawi said that at one point on Saturday, the UK was administering Covid-19 jabs at a rate of almost 1,000 per minute.

"The limiting factor is vaccine supply so the vaccine supply remains finite," he said.

"I can tell you that yesterday between 11 and 12 o'clock we almost got to 1,000 jabs a minute, we got to 979 jabs a minute."

Latest figures show more than 11.4 million people in the UK have received the first dose of a coronavirus vaccine.

The pace of the vaccine rollout indicates the UK is on track to meet its target of offering a jab to everyone in the top four priority groups - about 15 million people - by the middle of this month.

It was revealed this week that the government wants to offer a vaccine to those aged over 50 and those aged 16 to 65 who have certain health conditions by the end of April.

Asked about these targets, Mr Zahawi said: "I'm confident we'll meet our mid-February target of the top four cohorts, I'm also confident, because I have enough line of sight of deliveries that are coming through, that we will also meet the one to nine cohorts by May.

"It's a tough target, by the way, many many people who are clinically extremely vulnerable have to be reached by GPs, some can't travel."

The Vaccines Minister added the UK was beginning to store second doses, in preparation to provide both first and second inoculations next month.

He acknowledged that the pace of vaccines would "vary" and the manufacture of them "remains challenging".

"But as Patrick Vallance [the government's chief scientific adviser] said, there's never been a vaccine manufacturing process of a new vaccine without its challenges, but we see better stability now and greater volumes, but they will move around," Mr Zahawi said.

In a separate interview with the BBC's Andrew Marr Show, Mr Zahawi said a booster jab or an annual vaccination in the autumn could be required in the future.

He also confirmed in his interview on Sky News the UK was not looking at introducing vaccine passports, describing such a move as "discriminatory".

Mr Zahawi continued: "I think the right thing to do is make sure people come forward and be vaccinated because they want to rather than it being made in some way mandatory through a passport."

He added that if, at some point in the future, other countries required people to provide proof that they have received a jab, people could ask their GP to give them evidence.

"We're not planning to have a passport in the UK," he stressed.

Meanwhile, it has been revealed that rapid Covid-19 tests will be offered to workplaces with more than 50 employees.

Mr Zahawi said ministers "want it to become the norm that people when they go to work, once we are over this lockdown, then they can be tested rapidly".

He would not be drawn on how long lockdown restrictions could last for, only saying that Prime Minister Boris Johnson will set out a roadmap for the easing of measures on February 22.

Mr Zahawi said the hope was schools can begin reopening from 8 March, with the UK "gradually reopening the whole of our economy" after that.

He added: "We have to be mindful we want to make it based on the evidence of the vaccine efficacy and the impact on transmission, hospitalisation and death. It's a race against death."