Image caption Intelligence analyst Bradley Manning served in Iraq

The US Army has charged a soldier held in connection with the leak of US government documents published by the Wikileaks website with 22 extra counts.

The new charges against Private First Class Bradley Manning include aiding the enemy, a capital offence, but prosecutors have said they will not seek the death penalty.

The intelligence analyst is being held at a military jail in Virginia.

He is suspected of leaking 720,000 diplomatic and military documents.

Pte Manning, who joined the US military in 2007, was initially charged in May with 12 counts of illegally downloading and sharing a secret video of a US military operation and secret military and diplomatic documents and cables.

The new charges accuse the soldier of using unauthorised software on government computers to download classified information and to make intelligence available to "the enemy".

Under the US Uniform Code of Military Justice, the offence is punishable by death.

But in a news release, the US Army said prosecutors would not be recommending the death penalty.

"If convicted of all charges, Manning would face a maximum punishment of... confinement for life," said the statement.

Fresh details

Bradley Manning lip-synced to Lady Gaga while he downloaded thousands of classified documents, according to a computer hacker he befriended Profile: Bradley Manning

Pte Manning's lawyer David Coombs said the soldier's defence team had been preparing for the possibility of additional charges over the past few weeks.

Pte Manning is being held in solitary confinement in a high-security military prison at Quantico marine base, Virginia.

Mr Coombs has said he expects a hearing to determine whether the military has enough evidence to try the soldier to be held in May or June.

The newly released list of charges offers fresh details on the records Pte Manning is accused of obtaining illegally.

Those include:

More than 380,000 records from a database of military records from the Iraq war

90,000 records from a database of Afghan war files

250,000 records from a US state department diplomatic database

75 classified US state department cables, including one titled "Reykjavik-13"

A video file named "12 JUL 07 CZ ENGAGEMENT ZONE 30 GC"

In recent months, Wikileaks has published troves of documents it titled the Iraq War Logs, the Afghan War Diary, and reams of secret US state department cables spanning five decades.

The site has also released a cable titled Reykjavik 13 that summarised US diplomats' discussions with Icelandic officials about that country's financial troubles, and a leaked video of a 2007 helicopter attack in Iraq that killed two Reuters news service employees.