England's tense week is not letting up.

Five days after the suicide bombing attack on Ariana Grande's Manchester Arena concert, London's Old Vic Theatre was evacuated Saturday afternoon due to an unspecified security alert and Star Wars actor John Boyega had to be pulled offstage about 10 minutes into his performance of Woyzeck.

Neither the Old Vic or Metropolitan Police used the words "bomb threat" to describe the situation though evacuated patrons and the BBC did.  A short time later, both the police and the theater gave the all-clear.

A little after 11:30 a.m. ET, the theater's management confirmed via Twitter it had been evacuated as a safety precaution and they were "liaising with the Metropolitan Police."

About 20 minutes after the evacuation, the Metropolitan Police and Old Vic provided a Twitter update, saying, "The incident was found not to be suspicious," adding that the evening's performance would go on as scheduled.

The BBC reported that in addition to the Old Vic, nearby pubs and restaurants located near Waterloo were emptied, with some people being taken to the Imperial War Museum gardens.

Evacuated patrons tweeted that they saw armed police and dogs and fire trucks entering the cordoned-off area around the theater.

The incident came just hours after Prime Minister Theresa May announced the government was lowering the threat level from "critical" to "severe."

Boyega has not commented on the incident; his most recent tweet had been sent from the stage before the show.