A former Estonian prime minister and his delegation have been accused of sexual assault at a party in Kuala Lumpur, sparking controversy in his home country.

The incident has also sparked calls for the former prime minister, Taavi Roivas, to resign from his current post as vice president of the Estonian parliament.

Estonian portal err.ee, citing Estonian language daily Eesti Päevaleht, reported that multiple cases of assault, ranging from verbal to physical, allegedly took place at a bar in a Kuala Lumpur hotel where Roivas' delegation visited.

Roivas' delegation had attended the party after ending an official trade visit related to the technology sector on Sept 21...