One of two Olympic bronze medals stolen from a London nightclub has been recovered, police have said.

The medals, belonging to hockey player Hannah Macleod and rower Alex Partridge, were taken along with their TeamGB jackets as they partied after a reception hosted by the Queen at Buckingham Palace on Tuesday to celebrate the achievements of the 2012 athletes.

The Metropolitan Police said they had been alerted that Macleod's medal had been posted anonymously to the England Hockey head office in Buckinghamshire.

A Scotland Yard spokesman said officers were holding on to the medal while they continue their inquiry but that they would reuniting Hannah with her medal shortly. She was being kept fully informed of developments.

The medals were taken after the pair joined fellow Olympians at the Mahiki nightclub in London's Mayfair. Mr Partridge's jacket - minus his medal - was handed in to a north-west London police station on Thursday. A 31-year-old man was arrested in connection with the thefts and bailed until November 23.

Detective Chief Inspector James Harman said: "We are still looking to recover the second medal, and we stress that our inquiries remain active. Alex's medal has yet to be traced, and he is understandably keen to be reunited with it as soon as possible."

Macleod, 28, had asked via Twitter for whoever took the medal to post it back to the hockey headquarters at Bisham Abbey in Buckinghamshire. On Wednesday she tweeted: "I'm not after punishment. If you picked up a Bronze Olympic medal that isn't yours pls just send anonymously back to GB hockey-Bisham Abbey."

She told the Sun that she had been scouring eBay to see if it was on the popular auction website, adding: "I want it back so much. I've hardly slept since. I've just been standing by the phone, waiting for news."

The medal is still with Scotland Yard but they will be returning it to Macleod as soon as they can. In a statement, the force said: "The medal is being retained by police at this time as part of our inquiries, though we look forward to reuniting Hannah with her medal shortly. She has of course been kept fully informed."

An "extremely pleased" Macleod described it as a "huge relief" to be reunited with her hard-earned Olympic bronze medal. She is still hoping that Partridge will also get his treasured medal back. She said: "I am indebted to everyone who has tweeted about it, everyone who has got in touch and who has publicised the situation."