MIT officials evacuate a laboratory at the Massachusetts Institute of Technology (MIT) after a student creates or produces dimethyl mercury, a substance described by outlets as extremely toxic. A hazmat team responds to the incident and clears the area amid concerns about exposure.

Dimethyl mercury is reported to be highly dangerous even in very small quantities and can be absorbed through the skin. The reports emphasize the risk of severe poisoning and potential death from exposure, which drives the urgent response and evacuation. While both reports focus on the same chemical and safety reaction, they do not provide detailed, differing accounts of the underlying circumstances, such as the student’s intent, whether any exposure occurred, or what immediate medical outcomes followed.

As presented by the sources, the incident centers on laboratory safety measures taken in response to the presence or creation of dimethyl mercury, with emergency responders evacuating the lab to reduce the risk to people nearby.