The series of attacks began on October 8, when a bomb was thrown at one of the capital Dhaka's oldest churches.
The following night, two more bomb attacks followed, one at a church and one at a Catholic school.
No one has been physically injured in the attacks, but fear has spread among the Christian minority. Many are feeling "anxiety" and an "uncomfortable feeling" has spread within the group, a churchgoer told AFP.
No one has yet claimed responsibility for the attack. It is still unclear why the attacks were targeted at the Christian minority – which makes up around half a million of the country's 170 million inhabitants.
But the country's police authority states that the bombings are "definitely intended to scare people."
"We are trying to determine whether the incidents are connected or isolated," Muhammad Talebur Rahman, a spokesman for Dhaka police, told AFP.
Bangladesh has been gripped by political unrest since former Prime Minister Sheikh Hasina was ousted after widespread protests last year after 15 years in power. The country is due to hold elections in February next year.
