Low water levels at Longue Hougue expose gravestones that fell during a landslip in 1969.
Longue Hougue used to be a quarry and in 1969 there was a rock fall.
This caused a number of graves from the nearby St Sampsons churchyard to fall part way down the rock face.
The quarry is now a reservoir and unusually low water levels have exposed a rock-shelf and some dressed granite gravestones.
As human remains may also be visible, the police have to ensure that they date back to the landslide, so they are investigating.
Guernsey Water says that a visual survey will take place today (14 November) to check whether or not there has been a recent land slip, and to see if any further action is needed.
The company says it's helping the police with their investigation and it's been in touch with the Dean of Guernsey and the St Sampson’s Parish Cemetery Committee.
Guernsey gives £75k for Islands Unlimited inter-islands sailings
Guernsey tax package to raise more States income but protect low earners
Changes to make Guernsey's buses more reliable
Aurigny plane makes emergency landing after leaving Guernsey
New festival part of Guernsey's Seafront Sunday
Guernsey firefighters tackle round-island walk in full kit
No provider awarded subsidy for seasonal inter-island ferry service
Guernsey's key industry 'stable' in a turbulent world
