A seventh east London school has closed because of an infestation of false widow spiders.
Eastlea Community School in Canning Town announced it will shut on Wednesday until 29 October, after the half term holiday.
False widows are about the size of a 50p coin and are the most dangerous spider species in the UK.
Two other secondary schools and four primary schools, all in Newham, have closed for various amounts of time.
Thousands of children have been forced to miss up to a month of lessons because of the spider outbreaks, the Local Democracy Reporting Service reports.
The schools affected are:
- Lister Community School, which is expected to remain shut until after half term
- Rokeby School, which had expected to remain closed until half term but may now open on 15 October
- Star Primary School, which is expected to remain shut until 15 October
- Ellen Wilkinson Primary School, which is expected to fully reopen on 16 October
- Monega Primary School, which has fully reopened apart from the nursery which will remain closed until 15 October
- Earlham Primary, which closed for one day last week before being declared spider free
Several of the closed schools have arranged for some of their years to use facilities at nearby colleges while buildings are fumigated.
Work has also been set for pupils to do at home.
False widow infestations have been found at numerous locations across the affected schools, both inside and outside the school buildings.
Newham Council said head teachers "know their schools best and made their decisions [to close] because of the scale of problem in their school".
"We fully support their decision to stay open or to close and will work with head teachers to support their children," it added.
False widows - Britain's most venomous spider
- There are reports of false widow spiders becoming uninvited houseguests in homes across the UK every autumn
- False widow spiders arrived in south-west England in the 1870s
- It is Britain's most venomous spider, although there are no reported deaths from its bite in the UK
- The spider has distinctive cream markings on its bulbous body and is brown with reddish-orangey legs
- It prefers warm, dark places and eats insects, invertebrates and other spiders
Source: Natural History Museum