Jubilant Londoners rode the Night Tube for the first time as it finally launched overnight.
More than 100,000 people are expected to use the 24-hour service on its opening weekend, which London mayor Sadiq Khan hailed an “exciting new chapter” for the capital.
Six trains ran per hour on the Victoria line and most of the Central line on Friday with plans under way to introduce more Night Tube services.
Among the first wave of Londoners to use it were students Sam McGonigle and Edward Hick, both 19, who told the Standard they were “buzzing”. McGonigle said: “I’m so excited to be on the Night Tube.
I’ve been on about half an hour and so far I’ve loved it.
I think they should extend it.”
While Hick added: “I think they should extend it to more services because the night bus takes me so long to get home when I’m out.”
London mayor Sadiq Khan was among the first on the Night Tube inaugural 12.34am service from Brixton, where he was joined by passengers ranging from boisterous revellers to calm groups and individuals.
“You’re making history,” Khan told one couple.
Speaking as the train made its way towards north London, Khan said: “You can feel the buzz, you can feel the vibe.
People are really excited.”
“What’s important is we got the detail and the planning right.”
“I’m really pleased that 100 days or so after becoming the mayor we’ve got that right.” 
Friends Milly Watkins, 30, and Naomi Bartlett, 32, used the Night Tube to travel to their homes in south London after an evening spent in Stratford.
Watkins said: “Usually it would be quite tricky to get back from east London down to south.”
“It makes life easier instead of deciding at midnight whether to get the Tube.
It’s more relaxed.”
Speaking on a busy platform at Oxford Circus, Bartlett added she was reassured by police presence with uniformed and plain clothes officers stationed on trains.
She said: “It doesn’t seem too rowdy and there is obviously police at the stations and members of staff.
I forgot it was the Night Tube until I saw the cameras.”
Intern Hanene Lamloum, 23, who moved to London from Paris, was speaking on a Victoria line train from Brixton after a night out with her friend Sarah Cozzolino.
She said: “I’m really happy with the Night Tube, for me it is very convenient as I live in Victoria and with the Central line open as well I can get to Shoreditch.”
“I’m from Paris and we have nothing like this which is surprising.
I think I will use it a lot.”
Some Londoners told the Standard they were eager for Night Tube to be rolled out across other lines with Transport for London expected to announce the third Night Tube service – either on the Jubilee, Northern or Piccadilly — within a few weeks.
The two others should follow by the end of the year.
Accountant Kai Sharma, 28, of Tooting, said: “It’s a bit disappointing only a couple of lines are open, I’m sure they plan to roll out the rest of it.”
“It’s a good idea.
I haven’t struggled getting home but when you are going out somewhere the night buses are packed.
This will make it easier for all commuters.”
A report published a week before Night Tube’s launch said it would boost London’s economy by £77mn a year while another study said it would be responsible for more than 2,000 new jobs.