People living in low lying areas in India's southern city of Chennai have been evacuated and more than 150 relief centres are on standby ahead of a "very severe cyclonic storm".
The Indian Meteorological Department (IMD) said 'Nivar' was likely to cross between "midnight of 25th and early hours of 26th November" and was likely to bring very heavy rainfall.
Areas in and around Chennai witnessed intense spells of rain, accompanied by strong winds on Wednesday.
The cyclone was likely to damage houses and roads, uproot power lines and trees and destroy crops along India's south-east coast, the IMD said.
Edappadi Palaniswami, Tamil Nadu state's chief minister, has declared Wednesday and Thursday as public holidays in some areas, ordered the halting of bus services, advised fishermen not venture to sea and asked people to stay indoors.
Local government officials in Chennai released water from a major reservoir, cleared fallen trees and readied relief centres as they evacuated people from low lying areas.
South Korea and the United States will cut short annual joint military drills to five days from 11 and scale back some field training, the allies said on Wednesday, after President Donald Trump ordered a substantial reduction in US participation.
An Israeli airstrike killed nine Palestinians at a police station in Gaza on Wednesday, medics said, two days after US envoy Jared Kushner ended a trip to the region that failed to push forward Donald Trump's plan to end the war in the enclave.
Thai schools conducted active shooter drills on Wednesday, as authorities moved to strengthen security measures two weeks after a 14-year-old opened fire at a school and killed at least eight people.
At least 21 people have died and four others injured in a head-on collision between a bus and a truck in the BR-373 highway in Brazil's southern state of Parana, the road operator said on Wednesday in an X post.