Vandals have sprayed Islamophobic abuse and a swastika on a Muslim family’s car in the latest outbreak of racism in Australia in the wake of the Christchurch mosque shootings.

Police in Perth have launched an investigation after graffiti reading “Muslim” and “dogs” was painted on the car alongside the Nazi symbol in the early hours of Tuesday morning.

Mariam Hassan said she was asleep in her house with her husband and their 11-month-old son at the time.

“We have no idea who did it,” she told 9News. “Do people hate us? It’s so upsetting.”

She added: “It’s scary. They could come back and they could do it again, but they could do something worse. They probably wouldn’t even be afraid.”

New Zealand shootings: Victims of Christchurch mosque terror attacks Show all 11 1 /11 New Zealand shootings: Victims of Christchurch mosque terror attacks New Zealand shootings: Victims of Christchurch mosque terror attacks Zakaria Bhuiyan People gather hoping to find out information about Zakaria Bhuiyan who is still missing after the mosques shootings in Christchurch. David Moir/AFP New Zealand shootings: Victims of Christchurch mosque terror attacks Mucad Ibrahim Three-year-old Mucad Ibrahim, the youngest known victim of the mass shooting at two mosques in Christchurch, New Zealand, on 15 March 2019. Abdi Ibrahim via AP New Zealand shootings: Victims of Christchurch mosque terror attacks Nadeem Rasheed Nadeem Rasheed, brother of Pakistani Naeem Rashid who died alongside his son Talha Naeem, 21, who were killed in shooting at a Mosque in Christchurch, at their home town in Abbottabad, EPA New Zealand shootings: Victims of Christchurch mosque terror attacks Omar Nabi Omar Nabi speaks to the media about losing his father Haji Daoud Nabi, 71, in the mosque attack REUTERS New Zealand shootings: Victims of Christchurch mosque terror attacks Ash Mohammed Ash Mohammed, right, talks to a police officer about his father and two brothers who are missing near the Masjid Al Noor mosque AP New Zealand shootings: Victims of Christchurch mosque terror attacks Akhtar Khokhur Akhtar Khokhur, 58, shows a picture of her missing husband Mehaboobbhai Khokhar, 65. AP New Zealand shootings: Victims of Christchurch mosque terror attacks Wasseim Alsati A note is seen on a window of a door at the family home of Wasseim Alsati in Christchurch on 17 March 2019. AFP/Getty Images New Zealand shootings: Victims of Christchurch mosque terror attacks Haroon Mahmood Relatives offer condolences to nephew (centre) of Haroon Mahmood, a Pakistani citizen who was killed in Christchurch mosque shootings. AP New Zealand shootings: Victims of Christchurch mosque terror attacks Farid Ahmed Farid Ahmed (pictured) survived the Al Noor mosque shootings but his wife Husne was killed. AFP/Getty Images New Zealand shootings: Victims of Christchurch mosque terror attacks Syed Areeb Ahmed A relative shows a picture of Syed Areeb Ahmed, a Pakistani citizen who was killed the Christchurch mosque shooting. AP New Zealand shootings: Victims of Christchurch mosque terror attacks Naeem Rashid A relative looks at a picture on a mobile phone of Pakistani nationals Naeem Rashid and his son Talha Naeem (right) who died in the Christchurch shootings. AFP/Getty Images

There has been a spate of Islamophobic incidents in Australia and New Zealand since 50 people were murdered at two mosques on Friday.

Police ramped up security at mosque in Geelong, a city south of Melbourne, after it was threatened with a copycat attack on Sunday.

Two Muslim sisters wearing hijabs were told to “go back to your f***ing country” at a train station in Auckland on the same day.

There have also been at least seven arrests over alleged hate crimes linked to the Christchurch attack in the UK, including a man who called the gunman a "hero".

Funding for security at British mosques is to be increased in the wake of the atrocity, the government announced on Tuesday.

New Zealand's prime minister, Jacinda Ardern, called on her country "to show support for the Muslim community as they return to mosques on Friday".