Explosions are heard in Kremenchuk and Sumy (updated)

Explosions are heard in Kremenchuk, Poltava region, and Sumy.
This was reported by Censor.NET with reference to Suspilne.
An air raid alert has been declared in the Poltava region. According to Obozrevatel, ambulances are arriving in large numbers in the city after the explosion.
Suspilne also reports on an explosion in Sumy.
Exactly one year ago, on 27 June 2022, Russians launched a missile attack on the Amstor shopping center in Kremenchuk. At the time, there were about a thousand people in the center. As of 22-40 on 27 June, 15 Ukrainians were reported dead and 59 wounded. Another 40 people filed reports of missing persons. President Zelensky called Russia a terrorist state. Leading world politicians condemned the atrocity.