Lewis Hamilton refused to accept responsibility for the sensational first-lap crash that sent title rival Max Verstappen out of the British Grand Prix and into the Silverstone barriers.

Red Bull boss Christian Horner said Hamilton was guilty of "dirty driving" and questioned how he would sleep after the incident at Copse Corner that caused Verstappen to need hospital checks.

After the race was red-flagged and once Hamilton served a 10-second time penalty, the British driver went on to win his home grand prix and in doing so cut Verstappen's championship lead to only eight points.

"I've been giving my all this past week," Hamilton said afterwards. "Of course I always try to be measured in how I approach, particularly in battling with Max, he's very aggressive, and today I was fully alongside him and he didn't let me into space.

"Regardless of whether I agree with the penalty, I take it on the chin and I just kept working."

Verstappen was initially treated by medics at Silverstone but then needed to be taken to hospital.

"He's bruised, he's battered, but no broken bones. It was by far the biggest accident of his career," Horner said on Channel 4.

The Red Bull boss made his "dirty driving" claim just minutes after the crash, which saw Hamilton come up on the inside of the pole-sitter, only for their wheels to touch and Verstappen to suffer a crash that left his car a wreck.

"The penalty doesn't fit the crime," Horner said. "He's had no penalty because he's gone on to win the grand prix. It's a desperate move that you wouldn't expect from a seven-time world champion.

"It's just irresponsible and a sign of desperation and it's completely destroyed the car."

Horner said Red Bull would "consider our options" over a possible post-race protest, after Hamilton celebrated a record eighth victory in the British race.

"I don't think Lewis can take any satisfaction from a victory like that because we were lucky today that a driver wasn't badly hurt," Horner said.

"I hope he can sleep well tonight because that's not good driving."

Horner suggested the crash could ramp up the excitement for the rest of the season, backing his young driver to come back strongly.

"He's fit, he'll recover quickly and he's mentally very, very strong," Horner said. "If anything it'll just make him more determined.

"It just raises the stakes. It didn't need to be like that because it could have been a great race between the two drivers today."

Christian Horner described the "rollercoaster" of Red Bull's Azerbaijan Grand Prix success as Sergio Perez revealed he almost followed team-mate Max Verstappen out of the race.

Red Bull claimed consecutive wins for just the second time in the Hybrid Era, but it was Perez rather than Verstappen who led them to glory.

Verstappen was in complete control and set to head a Red Bull one-two when his left-rear tyre blew out in the closing stages. The same issue had ruled out Lance Stroll of Aston Martin.

That left the door open for title rival Lewis Hamilton to profit, but an error from the defending champion from the restart allowed Perez to race clear.

Red Bull boss Horner told Sky Sports: "I think I've aged about 20 years.

"We were staring down the barrel of our first one-two since 2016. Everything in control, we'd just checked in with Max, all okay, and then boom.

"The tyre went, and we don't know why. It looked like the wear was in good shape, so whether it's debris or something has happened.

"You can see it's a big place to have an accident. Thankfully, he's okay."

He added: "We were feeling at that point like the world had dropped from under us."

Worse might have been to come for Red Bull as Perez finished the race but then immediately broke down, receiving frantic messages over the radio as he celebrated his first victory for the team.

The Mexican, who has five consecutive top-five finishes for the first time in his career, said: "I'm so, so happy for today. Normally, Baku is pretty crazy.

"First of all, I have to say for Max I'm sorry. He did a tremendous race and really deserved the win, and it would have been incredible to get that one-two for the team.

"But at the end, it is a fantastic day for us. We were close to retiring the car but, luckily, we were able to finish the race. It was quite difficult all the way in the end."

Horner lauded Perez, whose victory moved Red Bull 26 points clear in the constructors' championship on a day Mercedes failed to score.

"He's a wily driver, a canny racer. He races really, really well," Horner said.

"We went from the despair of 'We've lost Max, we're going to lose the championship lead, Lewis could pass him at the restart and win the race'.

"It just shows the rollercoaster you go through in this sport.

"Suddenly it not being quite so bad, we've actually maintained the same lead in the drivers' championship leaving here and extended the constructors'."

Red Bull dedicated the victory to Mansour Ojjeh, the McLaren shareholder who passed away ahead of the race.

"He had the biggest heart and always carried the biggest smile," ex-McLaren man Hamilton posted on Twitter. "I am so grateful to have known such a man."