India has sent back former vice-president of the Maldives, Ahmed Adeeb, to his home country, two sources familiar with the matter said on Saturday, days after he illegally entered through a tugboat in the southern Indian city of Thoothukudi.

Axar.az reports citing Reuters that Indian authorities detained Adeeb early on Thursday after they were tipped off by the company operating the Singapore-flagged tugboat carrying him, port and police officials had said.

An Indian port official in Thoothukudi said Adeeb was sent back on Friday at around 10:30-11:00 p.m. (1700-1730 GMT) on a boat escorted by a coast guard vessel.

Adeeb is expected to reach Maldives by Sunday or Monday, said a second source, an official at the Maldives’ foreign ministry in Male said.

The two sources declined to be named due to the sensitivity of the matter. Police officials in Maldives and India’s foreign affairs ministry declined to comment.

The 37-year-old Adeeb was sentenced to 15 years in jail in 2016 for allegedly plotting to assassinate then-President Abdulla Yameen. He was also convicted of corruption and terrorism and faced a total sentence of 33 years.

Adeeb, a key witness in a money laundering case against Yameen, was once seen as a future leader of the Indian Ocean island chain.