Cavers held in visa probe.

The Britons rescued from a waterlogged cavern in Mexico could be trapped in the country until after the weekend as police investigate claims they were looking for radioactive materials.

The six men, along with seven others which made up the caving team, have been detained by Mexican authorities over possible visa breaches since they were helped from the caves near Cuetzalan yesterday.

Last night, a police investigation was launched into whether the men, who had been on a military training mission, had in fact been searching for uranium, a claim denied by defence officials last night.

Europe row

THE political battle lines were drawn today after Europe's leaders resurrected plans for a constitution. Tony Blair insisted he would not surrender sovereignty, but the Tories responded with taunts he was about to hand Brussels powers on criminal justice, tax and foreign policy.

Terror agenda

US PRESIDENT George Bush will hold a long-delayed meeting with Israeli Prime Minister Ariel Sharon next month, amid spiralling Middle East violence. They will discuss "the war on terror and the search for Israeli-Palestinian peace".

Stars' tribute

FAMILY and friends from the world of showbiz were paying tribute today to comic legend Sir Harry Secombe, pictured, at a memorial service in his local church, St Thomas's in Swansea.

Raids charge

A 43-YEAR-OLD man was due in court at Thetford today after being charged by Norfolk police investigating the employment of illegal immigrants by gangmasters. Victor Solomka, of King's Lynn, is accused of conspiracy to facilitate the entry into the UK of illegal immigrants.

Bombs link

A JORDANIAN linked to al Qaeda and suspected of heading a terrorist network in Iraq, is now believed to have masterminded the Madrid train bombings, a French private investigator says. Jean-Charles Brisard said Spanish officials told him some suspects held over the March 11 attacks were in contact with Abu Musab al-Zarqawi a month or two before the bombings, which killed 190 people and injured more than 1,800.