A suicide bomber killed 20 people and wounded 138 in Russia's Ingushetia region on today, turning a simmering Islamist insurgency there into the biggest test of Kremlin control of its southern flank.
"Every day something happens on (Ingushetia's)...territory," President Dmitry Medvedev told senior officials in the southern city of Astrakhan. "And they are all links in the same chain, all consequences of terrorist activity."
Medvedev sacked Ingushetia's interior minister after the bombing, the latest in a string of assaults, linked by analysts to Islamist insurgents, against police and politicians in Russia's poorest region, bordering Chechnya.
The bomb, packed into a yellow truck, exploded at the gates of the main police station in Nazran, Ingushetia's largest city, as officers lined up at the start of their day.
Thick smoke billowed from the remains of the police station and firemen fought flames near the mangled gate of the compound. Dozens of people sifted through rubble and wrecked cars were scattered around a 4-metre wide crater.
"This act of terror could have been averted," Medvedev said.
Ingush leader Yunus-Bek Yevkurov, who is recovering after a suicide bomb attack in June, said today's blast was aimed at destabilising the region, which has overtaken Chechnya as Russia's main area of violence in its south.
"This is a big blow to the Kremlin," said Tatyana Lokshina, an activist with Human Rights Watch (HRW) who travels regularly to the region. "The number of attacks has been growing for a while, but I can't remember one as brazen as this."
The European Union, in a statement by the current Swedish presidency, said it condemned the "brutal act".
The attack was the bloodiest in Ingushetia since 2004 when 92 people were killed when Chechen rebels took over the centre of Nazran, said Kaloi Akhilgov, a spokesman for Yevkurov.
It was the biggest death toll from an attack in the North Caucasus since a similar attack on the city of Nalchik in 2005 in the nearby Kabardino-Balkaria region.
No one claimed responsibility for today's attack.
Web site www.kavkazcenter.com, which has links to the Chechen separatist movement, praised the attack by calling the suicide bomber a "shakhid", a word Islamist fighters use to describe martyrs.
Reuters