"Police and other emergency services are on the scene and are dealing with the situation".
"Normal service at the Scottish Parliament has resumed and the block is once again opened".
The MSP building in Holyrood, Edinburgh, has been cleared following the incident.
Two additional envelopes were sent from the same sender to Conservative MSP's Liz Smith and Edward Mountain, but they were not opened.
Mr Mountain told the state broadcaster the package he received appeared to be an invitation to the Inverness Courier newspaper's 200th anniversary celebration.
Police have evacuated part of the Scottish parliament after an incident said to involve the discovery of a white powder in several packages sent to Conservative MSPs.
The "suspicious package" which led to Scottish Parliament being evacuated has been confirmed to be event invitations to Tory MSPs.
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The Tory floor of the Scottish parliament was evacuated earlier in the day, after three suspicious packages were found in the offices.
"The MSP block is now open and embers and their staff can return to their offices".
Firefighters and police officers are now on the scene in Edinburgh, while MSPs have gathered in a lobby area of the parliament.
"Emergency services were called at around 11.35am on Tuesday, November 7, following a report of a suspicious package having been delivered.
As a precaution the MSP building was evacuated".
'This is part of a pre-arranged process put in place, ready to deal with such developing situations'.