The first spate of vandalism was discovered on Sunday 9 September when one of the external panes was smashed. It was repaired by Ports of Jersey’s engineering team, allowing it to remain operational.
The most recent case was reported on Monday when it was found that the majority of the external glass panes had been damaged, as well as one of the internal red glass filters needed to warn mariners of any potential dangers along the coast.
Due to the extent of the damage, the windows have had to be boarded up until replacement glass and a new red filter can be sourced.
Jamie Dollimore, from Ports of Jersey, said they were looking at ‘a number of options to prevent further damage, including CCTV’.
Commenting on the incidents, Jersey’s Harbourmaster, Captain Bill Sadler, said: ‘We have to ask ourselves the question, why would someone wilfully target such an important navigational aid in such a malicious manner?
‘Aside from the obvious costs to replace and repair the structure I can’t understand why someone would wish to put mariners’ lives in danger in such a manner.
‘The longer this facility is out of service means an even greater risk posed, especially as we are approaching the winter months when the seas around this area are renowned for being dangerous. I would urge anyone who has any information on these two incidents to contact Jersey Coastguard or report it to the States of Jersey Police.’
Ports have issued a warning to mariners that the lighthouse is temporarily out of service.