Iran's state television showed on Friday a footage of a male British naval serviceman confessing to entering Iran "without permission."
"I deeply apologize for entering your waters," the British sailor, identified as Nathan Thomas Summers, said in an interview with the Al-Alam, Iran's state-run Arabic-language television.
"We trespassed without permission," he said.
Summers, who wore camouflage fatigues, was shown sitting with another British serviceman and Faye Turney, the only female among the 15 British naval personnel seized by Iranian forces last week.
His confession came after Turney was shown on Iran's television earlier this week admitting "illegal entry" into Iranian waters.
Earlier on Friday, Iran's official IRNA news agency reported that another sailor among the 15 British naval personnel seized by Iranian forces last week has confessed to "illegal entry" into Iranian waters.
Britain's Foreign Office on Friday denounced Iran for showing footage of the detained naval serviceman confessing to illegally entering Iranian waters.
"Using our military personnel in this way for purposes of propaganda is outrageous," a Foreign Office spokesman said.
Last Friday, 15 British naval personnel were seized by Iranian forces when they were patrolling off the Iraqi borders.
Iran has insisted that the British boats illegally entered its territorial waters. But Britain said its soldiers were in Iraqi territorial waters.
The UN Security Council in a statement on Thursday called for early solution of the 15 British sailors detained by Iran.
Source: Xinhua