Swiss International said that a flight from Delhi to Zurich had to abort its takeoff early on Sunday after an engine issue, adding that four passengers and one crew member were injured.

The airline did not elaborate, but the Economic Times reported that one of the engines had caught on fire as the plane was accelerating down a runway and that the passengers were injured during an emergency evacuation.

“Shortly after 1am local time on April 26, an issue occurred with one of the engines during the takeoff of flight LX147 in Delhi. The crew aborted the takeoff and, after assessing the situation, decided as a precaution to evacuate the aircraft,” Swiss International said in a statement.

It said that it had set up a task force to look into the incident, adding that the injured passengers were taken to a hospital, while the crew member had sustained a sprained ankle.

The airline had earlier said that six passengers had been injured but revised the number.

There were 228 passengers, four infants and 13 crew members on board the aircraft, which was an Airbus A330.

Delhi’s Indira Gandhi International Airport declared an emergency following the incident, but runway operations have since resumed, said a source familiar with the matter who was not authorised to speak on the issue and declined to be identified.

In its statement, the airport said its operations remained unaffected.

The suspect arrested in the White House Correspondents’ Association Dinner shooting on Saturday was identified by a law enforcement official as Cole Tomas Allen, a Los Angeles-area man who appears from social media sites to be a Caltech graduate working as a part-time teacher and game developer.

The official said Allen, approximately 31 years of age, is a resident of Torrance, California, a coastal town that is part of the South Bay area adjacent to Los Angeles abutting Santa Monica Bay.

The chief of the District of Columbia Police Department said investigators believe the suspect was a guest at the Washington Hilton hotel, where the annual dinner was taking place, but that no motive had been determined.

Meanwhile, Facebook posts appearing to relate to Allen show that he had been designated Teacher of the Month in December 2024 by the Torrance office of C2 Education, a nationwide private test-preparation and tutoring service for college-bound students.

A LinkedIn profile in the suspect’s name described him as a “mechanical engineer and computer scientist by degree, independent game developer by experience, teacher by birth”.

Allen obtained a bachelor’s degree in mechanical engineering from the California Institute of Technology in 2017 and a master’s degree in computer science from California State University, Dominguez Hills in 2025, according to the profile.

Caltech said in a statement that a person of that name graduated in 2017.

Under job experience, the profile shows he has worked for the past several years as a part-time teacher at C2 Education and as a self-employed game developer.

He previously worked as a mechanical engineer for a company called IJK Controls in South Pasadena for a year, and before that, he worked as a Caltech teaching assistant.

The profile also included a local newspaper article “on a robotics competition my team won” at Caltech in 2016. Under “Causes,” it listed only: “Science and Technology.”

The Secret Service said the suspect was armed with a shotgun and was taken into custody after opening fire at a Secret Service agent in the Washington Hilton Hotel, outside the ballroom where the event was attended by US President Donald Trump, his wife Melania, Vice President JD Vance and several cabinet secretaries.

A gunman fired shots in the hotel hosting the White House Correspondents’ Association dinner on Saturday, causing United States President Donald Trump and his cabinet to be rushed out before the suspect was taken into custody.

Here is a timeline of the incident and its immediate aftermath.

Around 8:35pm ET (5:35am PKT on Sunday): Guests at the Washington Hilton dinner took cover when shots were heard, video footage showed.

Soon after, Secret Service agents rushed towards Trump, escorting the president and his cabinet from the ballroom.

A sole gunman had rushed a Secret Service checkpoint in a lobby, Washington DC Mayor Muriel Bowser and interim Police Chief Jeffery Carroll later told reporters.

The suspect charged the Secret Service checkpoint in the hotel’s lobby area and was armed with a shotgun, a handgun and multiple knives, Carroll said.

As the suspect ran through that checkpoint, Secret Service members intercepted him.

A Secret Service agent was injured and transported to a local hospital, the mayor said, adding the suspect was also transferred to a local hospital where he was evaluated.

“We do know that law enforcement exchanged gunfire with the individual. … The suspect in this case, he was not struck by gunfire,” Carroll said.

“Law enforcement … they actually tackled him into the ground and handcuffed him.”

Around 9:17pm ET (6:17am PKT): Trump made his first comments after the shooting, saying law enforcement “acted quickly and bravely.”

Trump posted on Truth Social that “the shooter has been apprehended”. Trump said he recommended that the event continue.

About 20 minutes later: Trump posted again, saying law enforcement asked him and others to leave the premises and that he was complying with that request. The event will be rescheduled “within 30 days”, Trump said.

Around 10:30pm ET (7:30am PKT): Trump addressed the media in a press conference at the White House, accompanied by the director of the FBI and the acting US attorney general.

Trump and other law enforcement officials said preliminary information suggested the suspect was a lone shooter.

Around 11:13 pm ET (8:13am PKT): Jeanine Pirro, the US Attorney for the District of Columbia, told reporters the suspect was being charged with using a firearm during a crime of violence and assault on a federal officer with a dangerous weapon.