Owners vacated house bought on Auction.com

[Steve Diercks]

The owner of the house left when they received my notice a few weeks ago.  They have never communicated with me and now I see the have moved out.  They left what appears to be unwanted items.  Old bicycles, chairs, luggage etc... can I just have this hauled off to the dump?  I plan on having a locksmith come to house so I can gain entry to Change locks.  I’d like to get all the left behind trash and items removed ASAP.  Any advice?