Thiruvananthapuram (PTI): The Indian National Centre for Ocean Information Services on Saturday withdrew a 'red alert' issued for 'Kallakkadal' in the coastal areas of Kerala and the south Tamil Nadu coast and revised it to an 'orange alert'.

'Kallakkadal' is a phenomenon of sudden sea swells causing rough waves in coastal areas.

As part of the phenomenon, the low-lying areas of the Kerala coast are likely to experience rough sea and sea surge due to extremely strong waves of 0.5 meters to 1.5 meters till 11.30 pm on Sunday, the INCOIS said.

The low-lying coastal areas of south Tamil Nadu are also likely to experience a similar situation and high waves of 0.5 meters to 1.8 metres may cause sea surge there till tomorrow night, the agency warned.

INCOIS, the central agency that issues weather warnings for fishermen in the country, advised people to safely moor their fishing vessels in the harbour.

Authorities advised people to continue their caution and avoid trips to the beach and completely stay away from activities at sea.

The term 'Kallakkadal' literally means a sea that comes suddenly like a thief.

INCOIS has earlier said that the swells result from strong winds in the southern part of the Indian Ocean at certain times, and that they occur suddenly without any particular indications or warning which is why it is named 'Kallakkadal'.

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Mandya: Police on Tuesday arrested three private doctors in connection with a case involving alleged illegal scanning of 31 minor pregnant girls at a private diagnostic centre in KR Pet. The accused were later remanded to judicial custody.

The arrested doctors have been identified as Dr. Divyachetan of Chetana Maternity Centre, Dr. Harshit of Navi Diagnostic Centre, and Dr. Harish of Kushal Diagnostic Centre.

Police said Priyanka, a gynaecologist attached to a government hospital, is absconding and efforts are under way to trace her.

The case came to light after Karnataka Lokayukta Police recently conducted raids, during which illegal sex determination tests on minor pregnant girls were allegedly detected at two diagnostic centres in KR Pet town.

Following the raids, District Health and Family Welfare Officer Dr. Mohan, Deputy Director of the Women and Child Development Department P.S. Asha, and District Child Protection Officer Rashmi inspected several diagnostic centres and filed cases at KR Pet Town and Rural police stations.

According to the allegations, Navi Diagnostic Centre conducted scans on 24 minor pregnant girls, including 19 cases in 2024 and five in 2025. Kushal Diagnostic Centre is accused of conducting scans on seven minor pregnant girls.

Meanwhile, Deputy Commissioner Dr. Kumar has directed taluk vigilance committees to inspect all 63 ultrasound scanning centres in the district and submit reports within 10 days.

Officials said the Tahsildar of each taluk has been appointed chairperson of the respective committee.