Key Facts

• Racist graffiti was found on a Sudanese family's home in Londonderry.
• The graffiti included the words "local only" and a symbol resembling a crosshairs.
• The police are treating this incident as a racially-motivated hate crime.
• The family has been described as active and respected members of the community.
• The North West Migrants' Forum is supporting the family and asking politicians to denounce the attack.
• The local police have appealed for witnesses or video evidence that could help in the investigation.
• United Against Racism, a campaign group, has condemned the incident.