The Russian ground troops advanced slowly, and Grozny was surrounded by late November 1999. More than two additional weeks of shelling and bombing were required before Russian troops were able to claim a foothold within any part of the city. Russian ground forces met stiff resistance from rebel fighters as they moved forward, using a slow, neighborhood-by-neighborhood advance with the fighting focused on a strategic hill overlooking the city. Both sides accused each other of launching
chemical attacks. Claims of chemical attacks may have originated from the observation of unburnt remnants of gaseous explosive from TOS-1 thermobaric missiles or the chemicals may have escaped from destroyed industrial plants. The rumours of gas attacks and the divisions among Chechens (the Islamic extremists were blamed for provoking the war), contributed to the abandoning of Grozny by many rebel fighters. In early December, Russia seized the town of
Urus-Martan, the separatist stronghold near Grozny, after it had been battered with heavy air and artillery bombardments for several weeks. The majority of the city's civilian population fled following
the missile attacks early in the war, leaving the streets mostly deserted. As many as 40,000 civilians, often the elderly, poor, and infirm, remained trapped in
basements during the siege, suffering from the bombing, cold and hunger. Some of them were killed while trying to flee. On 3 December, about 40 people died when a refugee convoy attempting to leave the besieged areas
was fired on. Around 250 to 300 people who were killed while trying to escape in October 1999, between the villages of Goryachevodsk and Petropavlovskaya, were buried in a mass grave. The Russian forces besieging Grozny planned to attack the city with a heavy air and artillery bombardment, intending to level the city to the extent where it was impossible for the rebels to defend it. On 5 December, Russian planes, which had been dropping bombs on Grozny, switched to
leaflets with a warning from the general staff. The Russians set a
deadline, urging residents of Grozny to 'leave or be destroyed' by 11 December 1999, stating that "Persons who stay in the city will be considered terrorists and bandits and will be destroyed by artillery and aviation. There will be no further negotiations. Everyone who does not leave the city will be destroyed". The Russian commanders prepared a "
safe corridor" for those wishing to escape from Grozny, but reports from the war zone suggested few people were using it when it opened on 11 December. Desperate refugees who got away were telling stories of bombing, shelling and brutality. Russia put the number of people remaining in Grozny at 15,000, while a group of Chechen
exiles in
Geneva confirmed other reports estimating the civilian population at 50,000. Russia eventually withdrew the
ultimatum in the face of international outrage from the United States and the European Union. British foreign secretary
Robin Cook "wholeheartedly condemned" the Russian move: "We condemn vigorously what
Milosevic did in
Kosovo and we condemn vigorously what Russia is doing in Chechnya". The bombardment of the city continued; according to Russia's ministry for emergency situations, civilians remaining in Grozny had been estimated at anywhere from 8,000 to 35,000. On 2 January, Chechen fighters attacked and destroyed a Russian armoured column which had entered the village of
Duba-Yurt the day before. The following day, Gen.
Valentin Astaviyev said on state television that Russian forces had suffered only three dead in the previous 24 hours. Yet the commander of an Interior Ministry unit in Grozny told
Agence France-Presse that 50 men had been killed in the previous 48 hours. On 4 January, Chechen fighters in Grozny launched a series of
counter attacks and broke through Russian lines in at least two places, temporarily seizing the village of
Alkhan-Kala. Russian public support for the war, which was previously overwhelming, appeared to fade as casualties mounted and the government came in for increasing criticism in the tightly controlled Russian media for understating casualty figures. Russia's bombardments had finally begun to take their toll: using multiple rocket launchers and massed tank and artillery fire, the Russians flattened large parts of Grozny in preparation for an all-out assault. On 10 January, Chechen forces launched a
counteroffensive in support of the garrison in Grozny, briefly recapturing the towns of
Shali,
Argun and
Gudermes and opening a new supply corridor to the capital. In coordinated attacks, the Chechens also ambushed a supply column on the Argun-Gudermes road near the village of
Dzhalka, killing at least 26 servicemen in the heaviest one-day official death toll since the war began in September. The commander for the North Caucasus, Gen. Kazantsev, blamed the heavy losses on mistakes by "soft-hearted" officials who had allowed the rebels to counter-attack and declared that from now on only boys under the age of 10, old men over the age of 60 and girls and women would be considered
refugees. On 15 January, the Russians said 58 Chechens were killed as they attempted to flee Grozny. By mid-January, tens of thousands of Russian soldiers had begun an advance on central Grozny from three directions. During this fighting, several suburbs and key buildings adjoining the city center changed hands several times. In a number of incidents, small bands of rebel fighters cut off exposed Russian units from the main forces. On 19 January, in a major setback for the Russian forces, Chechen snipers killed one of the Russian commanders, Gen.
Mikhail Malofeyev. Russian troops were unable to recover his body until five days later. Two days later, one Russian unit lost 20 men killed in north-west Grozny after the rebels made their way through
sewage tunnels and attacked them from the rear. On 26 January, the Russian government admitted that 1,173 servicemen had been killed in Chechnya since the war began in October. This figure was more than twice the 544 dead reported 19 days earlier, on 6 January, with just 300 dead reported on 4 January, indicating many losses in the Grozny battles and elsewhere during this month (later, Russia claimed 368 servicemen were killed in the city). ==Breakout==