-Lots of reports saying similar. Reckon this is Simplicius' "zugzwang" move by Ukraine:


Big Serge
@witte_sergei

There is a large battle underway along the contact line south of Orikhiv. This is not a probe, it is not reconnaissance in force - the AFU is attacking in force attempting to breach towards Tokmak. HIMARs is active on the Ukrainian side. Russian air assets are airborne.

11:48 PM · Jun 7, 2023

https://twitter.com/witte_sergei/status/1666577877293465602