Update: Authorities say Russian guided munitions attack on Kharkiv injures at least 12, including 16-year-old boy

Editor's note: This story is being updated.

Russia troops attacked the city of Kharkiv with guided munitions on May 22, injuring at least 12 people, according to preliminary information from the local authorities.

The estimate of the casualties was raised from 10 injured after an update from the Kharkiv Oblast Prosecutor's Office at 5:45 p.m. local time.

Explosions in Kharkiv were reported at around 1:45 p.m. A residential area in the Shevchenkivskyi district came under the attack, Mayor Ihor Terekhov said.

A fire broke out in an apartment building and at a civilian gas station, according to Kharkiv Oblast Governor Oleh Syniehubov. The Russian attack also reportedly damaged cars and a local cafe.

Four people were hospitalized. One of the injured, a trolleybus driver, is in serious condition, the governor said.

Russian forces launched new offensive operations in the north of Kharkiv Oblast on May 10, exposing Kharkiv and a number of border settlements in the region to heavy attacks.

A Russian glide bomb attack on Ukraine's second-largest city on May 17 killed four people and injured 31 others, the local authorities said.

48 hours in Kharkiv, Ukraine’s most-bombed major city

The first signs that something ominous is happening in Kharkiv come as soon as the train from Kyiv reaches the suburbs of the city – as two pillars of smoke appear in the distance, every single phone in the carriage erupts with a piercing electronic squawking. “I guess we’ve arrived,

The Kyiv IndependentChris York