Surabaya, East Java, Sept. 2 -- Violent protests in Surabaya and Jakarta have caused more than Rp174 billion (USD11.3 million) in damages, authorities reported Monday.

Public facilities were vandalized, looted, and set ablaze in one of the year's worst episodes of unrest.

In Surabaya alone, losses exceeded Rp124 billion, according to East Java Police.

Damaged sites included police posts, traffic infrastructure, and the historic Tegalsari Police Station, a designated cultural heritage site.

"This is an initial estimate. The damage involves arson, looting, and destruction of public property," said East Java Police Spokesperson Senior Commissioner Jules Abraham Abast, on Monday.

Police are investigating multiple suspects and have filed ...