There has been no official comment from the authorities.
Powerful sounds of explosions were heard over Rostov-on-Don on the afternoon of 16 February. They were reported by the telegram channel "Rostov News - Rostovnews61" and residents of the city.
The sounds of explosions over the city were also confirmed by the RBC correspondent in Rostov-on-Don and the local press.
Citizens also share videos of car alarms going off after the rumble. There have been no official comments from the authorities yet.
Earlier on 15 February, the AFU shelled Belgorod. As a result of the attack, seven local residents were killed and 19 people were injured.