Four Ukrainians have been detained in an investigation of "large-scale" government corruption, including a parliament member, two anti-corruption agencies said.

Ukraine’s anti-corruption agencies said four people had been detained in a probe into “large-scale” corruption in the procurement of drones and jamming systems.

A Ukrainian MP and other officials have been arrested after the country's anti-corruption agencies uncovered what they call a large-scale bribery scheme in the purchase of drones and electronic warfare systems.