KYIV, Aug 6 (Reuters) - Olha Stefanishyna, dismissed as Ukraine's ambassador to the ‌U.S. earlier this week, is suspected ‌of illegal enrichment and failing to declare assets, authorities ​said on Thursday, the latest high-ranking official targeted in an anti-graft probe.

Prosecutors said Stefanishyna, who served as a deputy prime ‌minister before being ⁠appointed ambassador, concealed two apartments and other assets worth about $310,000 in ⁠total that could not have been acquired on her official salary alone.

Authorities did ​not identify ​Stefanishyna by name, ​in line with ‌Ukrainian law, but referred to the position she held when the alleged offences took place, from early 2024 to mid-2025.

In a Facebook post on Tuesday, she denied ‌wrongdoing and said she ​has never had anything ​to hide.

Her dismissal ​comes amid a recent shake-up ‌of senior officials, including ​the prime ​minister and defence minister, that has unsettled Ukraine's political establishment.

Stefanishyna was dismissed by ​President ‌Volodymyr Zelenskiy earlier this week after submitting ​her resignation.

(Reporting by Dan Peleschuk. ​Editing by Mark Potter)