A crowd of protesters dispersed after gathering for the ‘Nab A Thief’ (#TangkapPencuri) rally near Sogo shopping mall on Saturday.
Dang Wangi OCPD Asst Comm Shaharuddin Abdullah said some 200 policemen were on hand to ensure that nothing "untoward" occurred.
He added police will be calling up the organisers soon as the rally was illegal.