A boat was stolen by a gang of burglars from a a garage.
The thieves stole a red Topaz Tres sail boat with the number 523 on it, a launching trolley and a petrol generator from the garage in Upper Clarence Road, St Leonards, at some time between 9am on Monday 4 August and 9am on Wednesday 13 August.
They would have had to use a vehicle to have towed the boat and the other items away.
A police spokesman said: "We are keen to speak to three men who were seen in the area with a Landrover or a similar vehicle.
"The first man was white, in his 50s and of medium build. The other two were white, in their 20s, tall and skinny.
"If you know anything at all about what happened, or saw anyone acting suspiciously in the area, please contact us."
Anyone with information should email firstname.lastname@example.org quoting serial 340 of 13/08, call 101 or contact the independent charity Crimestoppers anonymously on 0800 555111.