Beyoncé, her sister Solange, and husband Jay Z have said they are ready to move on from the “unfortunate incident” surrounding a leaked elevator video that captured a private family feud.

“As a result of the public release of the elevator security footage from Monday, May 5th, there has been a great deal of speculation about what triggered the unfortunate incident. But the most important thing is that our family has worked through it,” the trio said in an exclusive statement to the Associated Press on Thursday. “Jay and Solange each assume their share of responsibility for what has occurred. They both acknowledge their role in this private matter that has played out in the public. They both have apologized to each other and we have moved forward as a united family.”

A New York hotel says it’s fired an employee over a leaked elevator video showing rapper Jay-Z being attacked by sister-in-law Solange Knowles as wife Beyonce looked on.

In a statement that did not name names, The Standard said it had identified the person responsible for breaching its security policies “and recording the confidential video”.

“The Standard has already terminated the individual and will now be pursuing all available civil and criminal remedies,” it said, adding that it would turn over “all available information” to police.

The fuzzy, silent black-and-white video posted on TMZ.com shows Knowles kicking and hitting Jay-Z in the elevator at The Standard hotel, which was the site of an after-party following the glamorous Met Gala in New York on May 5.

A bodyguard is seen trying to restrain the clearly agitated 27-year-old singer, whose 32-year-old megastar sister Beyonce stood largely in the corner alongside her 44-year-old husband of six years.

It’s not clear what provoked the incident.

But the trio can be recognised by the outfits they wore earlier that night at the Metropolitan Museum fashion gala – Solange in a pink Phillip Lim dress, Beyonce in a sheer black Givenchy Haute Couture gown and Jay-Z in a white tuxedo jacket.

Solange, whose new album is due out later this year, performed at the Coachella music festival in California last month, where Beyonce joined her on stage, delighting fans.

The Met Gala after-party took place at The Standard’s exclusive rooftop lounge – better known among New York night owls as “the Boom Boom Room.”