“It is with sorrow we receive the news that Tor-Marius is dead, and our warmest thoughts go to his family. This is a very difficult day for all concerned,” said Stabæk managing director Hallgeir Åndal in a statement.
Players, trainers and other employees of the club were informed of Gromstad’s death early on Monday.
Friends, family and club representatives took part in the search for the 22-year-old player after he was reported missing on Saturday evening.
Gromstad left his brother’s apartment in Bislett, Oslo at 7.30 on Saturday morning. He was reported missing at 9pm that evening.
Police confirmed that the body found on Monday morning at an Oslo building site was that of the missing player.
Police are not treating the death as suspicious.