Ukraine's sacked defence minister has said President Volodymyr Zelensky has 'questions to answer' about corruption in his government.Mykhailo Fedorov, who led a revolution in drone warfare and is seen as a rival to Mr Zelensky, said the president had 'questions to answer' about corruption after authorities searched the home of one of his deputy chiefs of staff.It followed a nine-minute video posted to YouTube by Mr Fedorov on Tuesday calling for an election amid a 'systemic crisis of governance'.The former minister, who was fired by Mr Zelensky last month after clashing with the head of Ukraine's armed forces, said in the video: 'We must not let Putin decide when Ukrainians can choose their government.'In a BBC interview released today Mr Fedorov, 35, said a money laundering investigation which began last week raised concerns about the president's awareness of potential corruption among his allies.Ukraine's National Anti-Corruption Bureau (Nabu) reportedly searched Iryna Mudra's home after she was accused of being part of a group which allegedly laundered 150million hryvnias (£2.5million) through the state-owned Sense Bank.Mr Zelensky sacked Ms Mudra on Wednesday but gave no reason for doing so.The search was part of a new money laundering investigation into lawmakers and bankers which began on the day Mr Fedorov released his video. Mykhailo Fedorov said Volodymyr Zelensky had 'questions to answer' as corruption allegations swirled around his government Anti-corruption officials searched the home of one of Mr Zelensky's deputy chiefs of staff on Wednesday amid money laundering allegationsNabu said it had discovered a scheme to misappropriate more than £2.2million to pay bail for a former energy minister accused of money laundering.The former defence minister said the president should answer queries about what he knew of corruption in his inner circle.'Let him answer this question... I believe that he's ready for such questions. It's his responsibility to tell us all whether he was aware of all that or not... I don't want to make any assumptions,' Mr Fedorov said.Ukraine has been rocked by corruption allegations as the war with Russia rolled into a fifth year.In November Mr Zelensky was forced to replace his longest-serving aide and chief of staff Andriy Yermak after allegations of money laundering described by his lawyers as baseless.Others have been accused of taking funds meant for energy infrastructure amid desperately cold wartime winters.Mr Zelensky sacked his widely popular defence minister after he reportedly fell out with Oleksandr Syrskyi, the head of the military who was later fired himself.Mr Syrskyi earned the nickname 'The Butcher' from critics after a nine-month defence of Bakhmut in 2023 brought heavy Ukrainian casualties.Supporters of Mr Fedorov have protested weekly on the streets of Kyiv since his sacking, calling for Mr Zelensky to restore him to government. Protestors have marched on Kyiv's streets in recent weeks calling for Mr Fedorov to be reinstatedSince Russia's invasion in 2022, Ukraine has been under martial law and elections are prohibited by the country's constitution during wartime.But Mr Fedorov said it was his 'moral right' to start a conversation about elections, adding: 'We should not be afraid of discussing it. That's what democracy is all about. If I cannot share my ideas and be open about them with my own society, then what are we fighting for?'The former defence minister declined to say whether he would back Mr Zelensky in a potential presidential poll.For his part the president said on Sunday he believed wartime elections would be 'a huge risk' for Ukraine.'Elections right now are a tsunami for the country that will split Ukraine,' he said.A spokesman from his office previously said: 'Since the former minister was part of every government since 2019, it's strange that he phrases it as though these were somehow different governments without him.'As everyone remembers, we didn't hear any strong statements from him back then.'Mr Fedorov said he had no evidence the president was personally corrupt and said he had never been asked to do anything that would 'go against law or my sense of integrity'.He has not spoken about his own political ambitions though said he was planning to visit the US in the coming weeks, likely to appeal for American support. Mr Fedorov used a nine-minute video posted on Tuesday to call for elections in UkrainePreviously digital transformation minister, Mr Fedorov is credited with replacing soldiers with an 'army of drones' to enable long-range Ukrainian strikes on military targets deep inside Russia, believed to have caused £35billion of damage.While in the US he hopes to meet Elon Musk, whose Starlink satellite communications system has been key to Ukrainian success.Mr Fedorov hopes to convince the billionaire businessman and one-time member of the Trump administration to extend the technology into Russian airspace to aid Ukrainian strikes without handing its power to the Kremlin.Ukraine's relationship with the White House became severely strained after US President Donald Trump returned to office, culminating in a contentious Oval Office meeting between the two presidents in February last year, but has rallied in recent months.Mr Trump had previously called for an election in Ukraine – which was due in 2024 but suspended under the constitution – but has since softened his stance.Support for Ukraine among allied governments has been 'lagging behind the realities on the ground,' Mr Fedorov said, criticising bureaucracy in the UK and abroad for delays in supplying weapons.The UK has supported Ukraine with £16billion-worth of weapons since the war began, including the British-made drones used to attack Russian targets last week.