Two children have allegedly been assaulted at the St Peter Port bus terminus.
Police say it happened at around 5:25pm on Tuesday 31 May.
Officers want to speak to anyone who saw what happened.
The force also wants people in the South Esplanade and bus terminus area with CCTV to come forward.
Anyone with information is asked to call PC55 Le Bachelet on 222 222 or Crimestoppers anonymously on 0800 555 111.
Guernsey firefighters tackle round-island walk in full kit
A team of firefighters will walk 39 miles around Guernsey today (Saturday 6 June) wearing their heavy kit.
No provider awarded subsidy for seasonal inter-island ferry service
No provider has been awarded a subsidy to operate the inter-island ferry service between Alderney and Guernsey.
Guernsey's key industry 'stable' in a turbulent world
The regulator says finance in Guernsey continues to attract funds, investment and insurance business.
Pubs can apply to stay open later to show World Cup games
Pubs in Guernsey can apply to stay open later to show World Cup games.
Landowners reminded to clear Guernsey's streams of vegetation
Guernsey Water say the island's 100 miles of fresh water douits are vital for water catchment.
Guernsey homelessness charity 'deeply concerned' at rising support need
In the first five months of 2026, At Home in Guernsey says the number of people it's supported is already nearing the total for the entirety of 2025.
Plans lodged to improve Guernsey's sea water Children's Pool
A planning application has been submitted to improve La Vallette slipway by the Children's Pool, following the damage caused by Storm Goretti.
States record £45M surplus, but still warn of Guernsey's funding gap
Guernsey's public finances turn in a surplus of £45 million, but P&R says the bigger picture shows a funding gap.
