The Russian athletics federation (RusAf) has been charged with serious breaches of anti-doping rules including obstruction of an investigation, the Athletics Integrity Unit has announced.

The charges relate to the alleged conduct of senior RusAf officials during an investigation of a whereabouts violation by Russian high jumper Danil Lysenko.

The AIU said a number of officials, including RusAf president Dmitry Shlyakhtin, along with the athlete and his coach, had been charged with tampering and/or complicity under the anti-doping rules and had been provisionally suspended.

The AIU said that the charges followed a 15-month investigation which had been conducted with the co-operation of the Russian national doping agency RUSADA.

The AIU said the investigation had "concluded that RusAF officials had been involved in the provision of false explanations and forged documents to the AIU in order to explain whereabouts failures by the athlete".

Lysenko, 22, won a silver medal when he competed as a neutral athlete at the 2017 World Championships in London, with the Russian federation already suspended by world governing body the IAAF since 2015