Fire crews are attending an incident at Bournemouth University.
Fire alarms were heard in Poole House and the building was emptied.
UPDATED - 13:30
Fire crews have left the University.
Dorset & Wiltshire Fire and Rescue confirmed they were called at 10.59am to a premises off Fern Barrow, Poole to reports of smoke.
Three crews from Springbourne, Redhill Park and Westbourne attended.
On arrival, they found smoke caused by a science experiment.
Crews used a gas monitor and thermal imaging camera to test the area, and they also reset the smoke alarm.
The stop came in at 11.25am.