WASHINGTON (AP) — The Obama administration accused Russia on Wednesday of orchestrating a new military campaign in Ukraine that is helping rebel forces expand their fight in the country’s east and sending tanks, rocket launchers and armored vehicles toward communities elsewhere.

“These incursions indicate a Russian-directed counteroffensive is likely underway in Donetsk and Luhansk,” State Department spokeswoman Jen Psaki told reporters, referring to two rebel regions in eastern Ukraine. She also voiced concern about overnight deliveries of materiel in southeast Ukraine, where separatists on Wednesday entered a key town linking Russia to the Crimean Peninsula it recently annexed.