Calvin Harris and Taylor Swift split after 15 months

Calvin Harris and pop star Taylor Swift have ended their relationship.

The US singer and Scottish producer and DJ split up after 15 months together, a source confirmed.

Swift, 26, had shared a series of photographs on Instagram in March as the couple celebrated their first anniversary on holiday.

She also posted a video as she watched Harris's headline slot at the California music festival Coachella in April.

Harris has previously dated British singer Rita Ora, while Swift has been romantically linked to One Direction's Harry Styles in the past.