RNLI and coastguard launched after concerns for sailor's welfare A large operation was carried out off the coast of Devon late on Friday night Updated The video will auto-play soon8Cancel Play now An operation involving HM Coastguard, RNLI crews and police took place late last night off the coast of Plymouth after concerns were raised about a sailor's welfare. Police have confirmed a number of agencies were involved in the incident which began in Torquay when the owner of a yacht set off from Torquay harbour at around 2.05pm yesterday having made concerning remarks. The vessel was tracked heading southwards into the English Channel.