TEHRAN, Iran - Iran's state-run radio on Monday cited what it called "positive changes" in Britain's negotiating stance and said because of those, television stations would not broadcast additional videos of British sailors' confessions.

Image from Iran's official Arabic-language television channel aired Sunday April 1 2007 of short video clips of what it said were two of 15 captured British sailors who in the footage pointed to a map of the Persian Gulf. [AP]

The state-run radio did not detail what it meant by positive changes, nor quote any officials by name. A state-run TV station had said earlier Monday that all 15 British sailors and marines held captive by the country had confessed to illegally entering Iranian waters.

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The 15 Britons were detained by Iranian naval units on March 23 while patrolling for smugglers as part of a UN-mandated force monitoring the Persian Gulf. They were seized by Iranian naval units near the mouth of the Shatt al-Arab, a waterway that has long been a disputed dividing line between Iraq and Iran.

Iran has repeatedly said it was trying to determine the intent of the British personnel before deciding what to do with them, and has demanded an apology from Britain as a condition for their release.

Britain contends the sailors were in Iraqi waters and has said it would not apologize.

The Iran Broadcasting Company said Monday the 15 alleged confessions would not be broadcast on Iranian news stations, however, due to what it called a change in the British government's negotiating policies. The state-run agency did not provide any further details as to what it meant by that.