At least 10 prison guards of Dhaka Central Jail have tested Covid-19 positive till yesterday, prison officials said.

"They were all discharging duties with ailing prisoners at different city hospitals. We are suspecting they were infected at the hospitals," said Iqbal Kabir, senior jail super of Dhaka Central Jail in Keraniganj.

"The prison guards used to stay at the old central jail in Bakshibazar after discharging duties. They showed symptoms for Covid-19 and got tested on several occasions," he said, adding they did not go to Keraniganj jail recently.

"As part of contact tracing, samples of some others prison guards have been taken. We are waiting for their test results," said a prison guard preferring anonymity.