Ukraine's vehement former prime minister, Yulia Tymoshenko, says the leaders who came to power following 2014's bloody upheavals are stifling the country by tolerating corruption.

In an interview with The Associated Press on Friday, Tymoshenko said there is no will at the top to tackle the issue because "all have satisfied their interests and turned into one corruption conglomerate which doesn't allow the country to breathe, to develop, to create an investment climate."

Tymoshenko gained international notice as the blonde-braided figurehead of protests in 2004 that overturned a rigged presidential election and led to her becoming prime minister.

After Moscow-friendly Viktor Yanukovych became president, she was imprisoned for abuse of office, and was released after he fled in 2014. Last month she withdrew her party from parliament's governing coalition.