Ukraine’s air force shot down two Russian missiles in Odessa this afternoon, officials said, but the debris fell on civilian infrastructure, injuring five people.

Among the injured is a 15-year-old boy who was outside at the time of the attack, Odessa Mayor Gennady Trukhanov said in a Telegram post.

“The enemy is insidiously directing its missile strikes at industrial and residential areas of Odessa,” the military command of southern Ukraine said in the same application.

Moscow denies that it is deliberately targeting civilians, but many have been killed in its airstrikes across Ukraine. Russia launched a major airstrike on Ukraine’s energy system on March 22, in what it said was “retaliation” for Ukrainian attacks on Russian provinces bordering Ukrainian territory. Russian forces continued to hit energy facilities this week.

Moscow has in recent days stepped up its use of ballistic missiles, which are faster than conventional cruise missiles and harder to shoot down. Two years after their invasion, Russian forces are making slow progress and now control about a fifth of Ukraine.