The roads in Preston have begun to melt due to the heat.
Part of Butler Street near Preston Railway Station is cordoned off due to a sinkhole appearing.
As temperatures cracked the flags at 30 degrees or more again in the city and Lancashire, the tarmac has collapsed.
The hole is close to the Fishergate Shopping Centre side entrance.
Read more: Hot weather warning issued for Preston and Lancashire
The county council is advising those picking up and dropping off at the railway station to leave more time.