A police investigation was opened in March after members of the public began receiving letters in the mail outlining a points-based reward system if they perform violent attacks against Muslims.
The letter, titled "Punish a Muslim Day" instructed the violence be conducted on April 3rd and was reportedly sent to members of the public, businesses and four Muslim MPs.
It offered rewards - or points - for a range of attacks including verbally abusing a Muslim and bombing a mosque.
Many on social media urged British Muslims to take care, and for Muslim women to hide their hijab with a hat of a coat.
Women wearing hijabs or burkas are considered particularly vulnerable to Islamaphobic attacks, and many said they would stay indoors or take the day off work to avoid the risk.
Others were determined that the letters would not cause them to change their daily habits.
Journalist Mona Chalabi took to Twitter to share her mother’s story: “My mum was going to stay at home today because of this. I just called her and she said “I‘ve changed my mine (sic) - I don’t want to sit here scared. I’m going out to return the microwave I bought last week.”
In a bid to express opposition to the threats, events were planned across the country including a Stand Up to Racism rally in Edinburgh.
Over 100 citizens in Newcastle came together and formed a human chain around the local Mosque in solidarity.
The letters are not an isolated incident for the Muslim community already rattled by reports of increased hate crime in the UK, as well as a recent video circulating the internet of a Muslim woman being attacked in a US hospital.
However Metropolitan police said no credible information had been received to suggest any attacks were planned, and the messages were an attempt to cause fear and mistrust amongst communities.
In a statement, they said: "At this time there is no credible information to suggest there is any criminal activity that will take place. We will be encouraging local faith and community networks to take part in a '#WeStandTogether' campaign."
#PunishAMuslimDay and counter-hashtag #LoveAMuslimDay, as well as #WeStandTogether, have been trending with more than 42,000 tweets sent, many urging Muslims to ignore the threats.
Using the hashtag #ProtectAMuslimDay, many volunteers across the country manned phones lines to take calls from people worried they were at risk.
