YOBS broke the windows of a shop, a telephone box and a doctors' surgery in Dorchester town centre.
And police arrested a local man after an attack on Paninis coffee shop at the end of Trinity Street.
Two men were spotted running away after glass was smashed at the telephone box, near the Dukes salesroom in Weymouth Avenue.
One had cropped hair and was wearing a white top with blue jeans, but there was no description of the second man.
Police said the two attacks were not connected.
They want to hear from witnesses who saw a window smashed at the doctors' surgery near Somerfield in Trinity Street in the early hours of Saturday.
Anyone with information should call Dorchester Police on (01305) 251212 or Crime-stoppers on 0800 555 111.
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