The Police Headquarters says several incidents of theft linked to motorcycles, three wheelers, mobile phones, and money have been reported at Galle Face and the GotaGoGama protest sites.
The Fort Police said several complaints have been received of a number of such thefts during the past two months.
The Police Headquarters therefore requested the public to be mindful when visiting Galle Face protest sites.
In addition to the thefts, Police said complaints have been lodged pertaining to disputes and assaults.
An individual was hospitalised after being assaulted on Thursday while the suspect who carried out the assault has been arrested by Police.