Panaji: A lifeguard agency here has advised the people not to venture into the sea along the Betalbatim and Velsao beaches where it has spotted jellyfish, which can sometimes cause harm.

The lifeguards spotted the jellyfish washed ashore along the Baina-Betalbatim-Velsao beach belt in South Goa on Friday, Drishti Lifesaving agency said in a release issued here yesterday.

The agency has informed the state tourism department about it and cautioned the visitors on the beaches to stay alert and safe, it said.

The jellyfish are of two kinds - toxic and non-toxic. While most jellyfish stings are harmless to humans and cause only a mild irritation, in very rare cases some jellyfish species are venomous and can cause harm on contact, the release said.

Earlier in July, the agency had advised the tourists against venturing into the sea in North Goa's Candolim-Sinquerim beach belt where it spotted the 'Portuguese man-of-war', a marine creature with venomous tentacles that can deliver a painful sting. PTI