In the latest advisory, the Embassy said: "U.S. citizens should practice vigilance and still consider returning to the United States.  Avoid demonstrations and exercise caution in the vicinity of any large gatherings.  Review personal security plans; remain aware of your surroundings, including local events; and monitor local news stations for updates.  Fixed-line and mobile internet services are available."

The Embassy said flight operation is going on nearly close to normal in the Dhaka airport.

" The airport is operating close to normal, with both international and domestic flights.  Reports indicate that regional airports are also secure and functioning normally," the Embassy said.

Bangladesh crisis

Bangladesh has reported arson, killings, and multiple incidents of persecution of minority communities across 52 districts since Sheikh Hasina's resignation as the Prime Minister last week.

Hasina fled the country the same day amid fears of being mobbed after protests intensified following the death of over 400 agitators in clashes with the cops.

Her residence was stormed by the protesters hours after she left the complex in a military helicopter. She landed at an airbase in India's Uttar Pradesh, hours later.

Bangladesh is still looking at uncertainty even as a caretaker government has been sworn in under the leadership of Nobel laureate Muhammad Yunus amid reports of persecution of minority communities that continue to pour in.