They started the day with bagels, coffee and a boring commute. Then a plane crashed into the World Trade Center. Several terrifying hours later thousands were dead, Manhattan had become a disaster zone, and life would never be quite the same.

An archive containing the contents of more than half a million pager messages sent on 11 September 2001 was published yesterday by the internet site Wikileaks. It provided an uncensored and sometimes deeply moving first-hand account of the attacks on New York and the Pentagon.

The messages were sent by a mixture of frantic emergency personnel, security officials, and people trapped inside the Twin Towers, many of whom used now-obsolete pagers to contact loved ones after the mobile phone network jammed.

“Please call me I need to know where you are,” reads one sent to an office worker around 10am, just over an hour after the attack began. “Don't leave the building. One of the trade towers just fell. Please be careful. Love you — Tiffany,” reads another.

They were published by Wikileaks in “real-time” yesterday, starting from 8am and proceeding for the next 24 hours, in an effort to tell the story of 9/11 as it happened. The archive of 570,000 messages will in future be stored online.

Alongside computer-generated alerts and news updates from organisations like Bloomberg are tragic personal farewells. “Honey, I want to tell you how much I love you,” reads one highlighted by Wikileaks.

The sheer volume of the archive means that it promises to provide an endless resource for conspiracy theorists. Many hope it will provide a ‘smoking gun’ that will prove the theory that US intelligence agencies had advance knowledge of the attacks, which left 3,000 dead.

At 8.47am, one minute after the first plane hit, comes the first non-automated reference to the attack. “Someone just told me there was an explosion at wtc ... A plane crashed thru the twin towers. Real bad... BR” it reads.

Soon, pager networks are full of panicked messages such as “The World Trade Center has just blown up, we have seen the explosion outside our window.”

No one knows exactly how the messages were obtained. But many reports yesterday speculated that they came from a source inside US intelligence services.

Wikileaks, an anonymous whistleblowing organisation, said: “The archive is a completely objective record of the defining moment of our time.”