Robin Williams' daughter has quit Twitter.

Grieving Zelda Williams was left sickened when she received abusive messages from two users, who also sent her Photoshopped pictures of her father - who took his own life on Monday (11.08.14) - supposedly after his death.

She first urged her followers to report the trolls, before announcing she was taking a break from the social media site, possibly forever.

She wrote in a tweet which she then deleted: ''Please report @PimpStory @MrGoosebuster. I'm shaking. I can't. Please. Twitter requires a link and I won't open it. Don't either. Please (sic)

She then wrote: ''I'm sorry. I should've risen above. Deleting this from my devices for a good long time, maybe forever. Time will tell. Goodbye.''

The two users' accounts have now been suspended.

Following her father's shock death, 25-year-old Zelda used the social network to pay tribute to him.

She shared a quote from Antoine de Saint-Exupéry's literary classic 'The Little Prince' that reads: ''You - you alone will have the stars as no one else has them... In one of the stars I shall be living. In one of them I shall be laughing. And so it will be as if all the stars were laughing, when you look at the sky at night... You - only you will have stars that can laugh.''

She added: ''I love you. I miss you. I'll try to keep looking up, Z.''

She later released a moving statement in honour of her father, as did her half-brother Zak, 31, younger brother Cody, 22, and her mother - the actor's second wife - Marsha Garces.