Police are investigating an allegation of postal vote fraud for the upcoming elections.
Detectives from Specialist Crime and Allegations have not arrested anyone over the alleged fraud, which was reported on May 10.
The vote is said to come from an address in Rifle Street, Poplar, and enquiries are continuing.
This is the second allegation to hit the borough’s elections, which take place on May 22.
A Conservative council candidate was suspended by his party after being arrested on suspicion of making false declarations.
Read more:
Mile End Conservative candidate suspended over election arrest
Comments: Our rules
We want our comments to be a lively and valuable part of our community - a place where readers can debate and engage with the most important local issues. The ability to comment on our stories is a privilege, not a right, however, and that privilege may be withdrawn if it is abused or misused.
Please report any comments that break our rules.
Read the rules here