Organisers of the Durga Puja site at Babulia High School grounds at the Sadar Upazila said three idols were damaged early today, Bdnews24 reported.
Organising committee chief Arvind Mandal said that the idols were guarded until early morning after artisans provided finishing touches the previous night.
"Some of the committee members were at the site the whole night, but left in the morning. It is then that unidentified miscreants vandalised the idols," he was quoted by the online portal as saying.
"I have visited the site. Steps will be taken against those involved," said Satkhira Sadar police OC Emdadul Haque.
Bangladesh Hindu-Buddhist-Christian Unity Council's Satkhira chapter General Secretary Swapan Kumar Sheel said that idols were being vandalised in different places in the district in a planned manner.
He said on October 6, five idols were vandalised at Puja site in Ashashuni Upazila.