What happened (Sunday: reported civilian deaths)

Competing Russian and Ukrainian strike claims reported at least ten civilian deaths. Kyiv alleged a Russian strike on a supermarket in northern Ukraine. Russia alleged a Ukrainian strike on a bus stop in occupied eastern territory.

Background and earlier position (frontline intensity and stalled diplomacy)

The Sunday claims came after a previous day in which 20 people were reported killed on both sides along the frontline, alongside intensified attacks and stalled diplomacy.

What changed now (target types and location-wise death reports)