Dhaka - Dhaka has alleged three Indian ships illegally entered Bangladesh's territorial waters to carry out hydrocarbon exploration activities in the Bay of Bengal, media reports said Friday.
Foreign ministry officials said the government protested the Indian intrusion into Bangladesh's maritime boundary and on Thursday night dispatched a naval frigate to the area, asking the Indian ships to go back to their territory.
Bangladesh's Foreign Secretary, Touhid Hossain, said he had information that Indian ships entered Bangladesh waters. However, he refused to give details.
The Indian survey vessels started seismic survey activities some 140 nautical miles south-west of Mongla seaport, a Bengali language newspaper reported, quoting a navy source.