The Health and Safety Executive is probing three Leicester factories over claims staff are being forced to work with inadequate protection from coronavirus.
The government agency said one of the sites had been issued an ‘improvement notice’ to take action to control the risk of Covid-19 in the workplace.
It comes as celebrities distanced themselves from Boohoo as the fast fashion giant faces accusations of ‘human trafficking and slavery’ in the city.
Influencers including model Jayde Pierce and reality TV star Vas Morgan turned their back on the brand after claims it was using a £3.50 an hour sweatshop in Leicester.
The National Crime Agency is also probing whether the factories were operating without social distancing measures and if workers were not wearing masks.
Home Secretary Priti Patel branded the allegations ‘truly appalling’ and vowed to clamp down on modern slavery in Britain.