Athens is to store away dozens of outdoor sculptures after five brass busts went missing last month and a marble statue was vandalized, officials have said, according to AFP.

"We have pinpointed 49 sculptures that are in a vulnerable position," Mayor Yiorgos Kaminis told a news conference on Thursday, June 9.

"We are examining the temporary withdrawal of some (of them) and their replacement with copies."

Officials suspect the five brass busts of early 20th century Greek poets and writers were removed by smelters as a number of pavement curb box covers, which give access to utility pipes and wiring, have recently disappeared.

Authorities have in recent years struggled to restore many of the capital's 200 or so outdoor sculptures from recurring vandalism.