Pop star loses $1m in valuables at WCup

Colombian pop singer Maluma has been reportedly robbed of luxury items worth over 50 million roubles ($A1.1 million) from his hotel room near Moscow's Red Square.

Russian media says an intruder stole valuables including a Louis Vuitton bag, 11 luxury watches, various items of Cartier jewellery and 10 glasses studded with diamonds and pearls.

Maluma is one of the biggest names in Latin music.

Moscow's Four Seasons Hotel, where Maluma was staying, says an investigation is underway.

"We treat the question of security for our guests and their belongings very seriously and immediately informed the police," she said in an email.

Just after midday Moscow time, Maluma wrote on social media that he was travelling to the city of Saransk where Colombia was due to play Japan, posting a picture of himself wearing a Colombian soccer jersey in front of a plane.

"En route to SARANSK. Today we finally accompany our team COLOMBIA!!" Maluma, who is from the city of Medellin, wrote.

Colombia lost 2-1.