THE First Minister has said today will "go down in history as a dark one indeed for UK democracy" as Boris Johnson's plan to suspend parliament ahead of Brexit was revealed.

Later today Johnson is expected to ask the Queen to delay the State Opening of Parliament until October 14, meaning efforts to stop a No-Deal Brexit are now limited. 

The move has reportedly been described as "war" by opposition MPs.

Nicola Sturgeon said: "So it seems that Boris Johnson may actually be about to shut down Parliament to force through a no-deal Brexit.

"Unless MPs come together to stop him next week, today will go down in history as a dark one indeed for UK democracy."

READ MORE: Boris Johnson to delay Queen's Speech to October 14

Tories have denied the October 14 Queen's Speech has any significance or relevance to Brexit. 

One source told journalist Laura Kuenssberg "this is about the NHS and violent crime, not Brexit, and the courts have no locus to interfere in a bog standard Queen's Speech process".

In response to the reports of a parliamentary suspension, Tory Party chairman James Cleverley said: "Or to put is another way: Government to hold a Queen's Speech, just as all new governments do."

It is standard for governments to suspend parliament ahead of the Queen's Speech. However, the expected dates of September 10 to October 14 do mean the time of suspension is longer than usual.