Several people were rushed to hospital with breathing difficulties after a suspected chemical leak in Dagenham on Saturday night.
Emergency services were called to Wren Road after multiple residents reported breathing difficulties believed to have been sparked by a coral toxin. Hazardous response teams were dispatched to investigate the suspected chemical leak.
The London Ambulance Service said it sent "a number of resources" to the scene following reports of the incident.
An ambulance spokesperson said: “We were called at 9.46pm on 10 August to reports of an incident at a residential address on Wren Road.
“We sent a number of resources including ambulance crews, an incident response officer and members of our Hazardous Area Response Team (HART).
“We responded alongside colleagues from London Fire Brigade. We treated seven patients and took them all to hospital.”
Around ten houses were cordoned off in the incident.
The mystery chemical is believed to be palytoxin, a dangerous substance released from coral in a fish tank, reported the Daily Mail.
However, the substance concerned has not been confirmed by the authorities.
