Grace Millane's brother posts heartbreaking tribute to younger sister

The brother of English tourist Grace Millane, who was killed while visiting New Zealand last week, has posted a heartbreaking tribute to his younger sister on Instagram.

"You are my sunshine, my only sunshine," he captioned the series of photographs of himself with Ms Millane.

Grace Millane's brother posts heartbreaking tribute to younger sister
Photo credit: Instagram/Declan Millane.

They include one from Ms Millane's university graduation and the siblings as youngsters, Ms Millane looking up and smiling at her big brother.

"You'll never know dear, how much I love you," he said, quoting lyrics from popular song 'You Are My Sunshine'.

A 26-year-old man appeared at the Auckland District Court on Monday, charged with Ms Millane's murder. He was granted interim name suppression.

Grace Millane's brother posts heartbreaking tribute to younger sister
Photo credit: Newshub

The hashtag #herlightourlove has been used on Twitter as a virtual vigil, people posting photos of sunsets and skylines to honour Ms Millane.

Lincoln University Hockey Club, where Ms Millane played during her time studying in the UK, posted an image of "Grace's favourite place in Lincoln".

Vigils are being planned in Auckland and Wellington to pay respects to Ms Millane, with many New Zealanders expressing horror at her death on social media

Newshub.