Colombo, Oct 15 (AP) Sri Lankan authorities have stepped up a search for a navy boat that went missing a month ago along with six sailors while patrolling in the Indian Ocean off the island nation, a navy spokesman said on Saturday.

Navy spokesman Capt Indika de Silva said the sailors ventured out from Sri Lanka's southern coast on Sept 16 on a regular patrol and a day later, the navy had lost communication with the boat.

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He said that since then, the navy had deployed vessels to find the boat and the search operation intensified with the deployment of air force aircraft.

Silva said they suspect the boat might have developed an engine trouble and drifted to the open sea after getting caught in a heavy current.

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“So far, we have not been able to find the boat or the sailors,” said Silva.

Sri Lanka's navy conducts regular patrols to crack down on smuggling. In recent months, the navy has successfully carried out several missions targeting narcotic and human traffickers. Dozens of people have been arrested while trying to illegally migrate mostly to Australia along with traffickers carrying large quantities of narcotics.

In May and April, the navy seized more than 1,000 kg (2,204 pounds) of heroine that was being smuggled in vessels. (AP)

(The above story is verified and authored by Press Trust of India (PTI) staff. PTI, India’s premier news agency, employs more than 400 journalists and 500 stringers to cover almost every district and small town in India.. The views appearing in the above post do not reflect the opinions of LatestLY)