A Cardiff taxi driver and his son who died in Bangladesh were poisoned by carbon monoxide, police believe. Rafiqul Islam, 51, and Mahiqul Islam, 16, died after being found unconscious in the north-eastern region of Sylhet late last month.
They were found alongside Rafiqul's wife Husnara Begum and their other children Samira, 20, and Sadiqul, 24. Husnara and Sadiqul were released from hospital on Wednesday, while Samira remains in an "alarming" condition in intensive care, police said.
Officers said Husnara and Sadiqul had told them a faulty emergency electricity generator in the property they were staying at had been used on the night of the tragedy due to a power cut, the BBC reported.
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Supt Farid Uddin said officers had visited the property with Husnara and Sadiqul, adding the generator pumped out smoke as it was running, which could have led to suffocation. He said: "We collected a smoke sample from the generator and we sent it to fire service to see if chemicals were also found in the bodies of the deceased and of the survivors. We have to wait for some days to get the chemical analysis report."
A doctor said on Tuesday there was no concrete evidence Rafiqul and Mahiqul had been poisoned. Rafiqul lived in the Riverside area of Cardiff.
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