On 24 January, a major escalation took place after a rocket attack killed many people. Mariupol city authorities said that a
Grad rocket hit a residential area in the city, and killed 20 people. Video footage showed that cars, buildings, and apartment flats were in flames as a result of the attack. The attack appeared to come from a multiple rocket launcher. One resident told
Agence France-Presse on the telephone that the rebels had managed to seize
Mariupol Airport, although rebels made no comment about that alleged airport seizure. The airport is located some 20 kilometers behind the front line. The rebels denied any involvement in the attack. The rocket attacks came a day after the rebels rejected a peace deal and announced they were going on a multi-prong offensive against the government forces in Kyiv to vastly increase their territory. The death count rose to 27 people, with several more injured. Ukrainian Prime Minister
Arseniy Yatsenyuk called for an urgent meeting of the
UN Security Council. A Ukrainian military checkpoint was also hit in the attack, killing one soldier. The city council urged citizens of
Mariupol not to panic and said that "all units are fully battle-ready. Security measures in the city have been strengthened." The General Secretary of NATO,
Jens Stoltenberg, condemned the attack, urging Russia to stop supporting the rebels. President
Petro Poroshenko considered the attack a "
crime against humanity", and cancelled his trip to Saudi Arabia. He also vowed to deliver a "full victory" over the rebels. According to
OSCE observers "Grad" and "
Uragan" rockets were used in this attack, originating from villages of Oktyabr (19 km NE) and
Zaichenko (15 km NE), both controlled by separatist forces. Later, pro-Russian extremists said they were not going to storm Mariupol and the offensive was only to strengthen positions around the city. The next day, President Poroshenko vowed to calm the recent fighting in the strategic port city. Speaking at an emergency meeting at the Ukrainian Security council, he said that the
Minsk Protocol signed on September 5 was the only solution to end the conflict. He said intercepted radio conversations proved that pro-Russian extremists were behind the attacks, but that the conversations hadn't yet been confirmed. Russia denied involvement in the attack, saying it was a result of Ukrainian forces shelling residential areas indiscriminately. Petro Poroshenko said Ukrainian forces killed most of the rebels involved in the shelling, and put the rebel casualties at 110. Six Grad missile launchers were also destroyed according to him, and he said that the SBU brought the artillery gun spotter back to Kyiv for questioning. The
Security Service of Ukraine (SBU) published a detailed timeline of the rocket attack. == Aftermath ==