An official request goes before the Commons today to find a replacement for the late Paul Goggins MP.
Voters in Wythenshawe and Sale East will go to the polls on February the 13th.
The 60 year old Labour MP died after collapsing while out jogging.
More top news
Health workers visiting Manchester have offered to pitch in to help care for those injured in an explosion at a concert in the city.
If it is confirmed as a terrorist incident, the Manchester blast would be the deadliest attack in Britain since the July 7 bombings in 2005.
US pop star Ariana Grande has said she is "broken" following the suspected terrorist attack at Manchester Arena, adding: