The video showed Turney in checkered head scarf and her uniform eating with other sailors and marines. Later, wearing a white tunic and black head scarf, she sat in a room before floral curtains and smoked a cigarette.

Related readings: UK turns up heat on Iran over sailors Iran TV shows footage of UK sailors Brit presses Iran; woman may be freed Blair warns Iran standoff could escalate Iran: Sailors being treated humanely MOD: Iran seizes 15 Royal Navy personnel

Turney was the only detainee to be shown speaking, giving her name and saying she had been in the navy for nine years.

"Obviously we trespassed into their waters," Turney said at one point. "They were very friendly and very hospitable, very thoughtful, nice people. They explained to us why we've been arrested. There was no harm, no aggression."

Before the video was broadcast, a spokesman for Blair said any showing of British personnel on TV would be a breach of the Geneva Conventions.

After the footage was aired, Foreign Secretary Margaret Beckett said she was "very concerned about these pictures and any indication of pressure on, or coercion of, our personnel. ... I am particularly disappointed that a private letter has been used in a way which can only add to the distress of the families."

The third Geneva Convention bans subjecting prisoners of war to intimidation, insults or "public curiosity." Because there is no armed conflict between Iran and Britain, the captives would not technically be classified as prisoners of war.

Blair told the House of Commons that "we had hoped to see their immediate release."

"This has not happened. It is now time to ratchet up the diplomatic and international pressure in order to make sure the Iranian government understands its total isolation on this issue," he said.

Beckett said Britain would focus all its efforts on resolving the issue.

"We will, therefore, be imposing a freeze on all other official bilateral business with Iran until the situation is resolved," she said.

The statement appeared to refer to diplomatic dealings rather than business relations, but Britain's Department of Trade said the country does not buy oil directly from Iran.

Oil prices rose by more than $1 a barrel Wednesday to a six-month high amid worries about the standoff, which came as the US Navy is carrying out its largest show of force in the Gulf since the 2003 invasion of Iraq.

President Bush discussed the 15 Britons with Blair over a secured video conference call Wednesday, White House deputy press secretary Dana Perino said. "The president fully backs Tony Blair and our allies in Britain," she said.

British officials have said the 15 Britons were taken captive after completing a search of a civilian ship near the mouth of the Shatt al-Arab waterway, which forms the border between Iran and Iraq.

1

2