911 is down in Massachusetts. Here's what to do

Update: The 911 system came back online around 4pm Tuesday, per state officials .

911 is down across Massachusetts, officials say.

The big picture: The outage comes as Boston and several surrounding cities experience a heat wave, which can lead to heat exhaustion and other medical emergencies.

In Boston, officials shared district numbers that locals can call to report police, fire or medical emergencies.

• Boston fire: 617-343-2880 or pull a fire box.
• Boston EMS : 617-343-1400.

For Boston police, residents can pick up a phone and call the district station.

• Downtown A-1: 617-343-4240
• Charlestown A-15: 617-343-4888
• East Boston A-7: 617-343-4220
• Roxbury B-2: 617-343-4270
• Mattapan B-3: 617-343-4700
• South Boston C-6: 617-343-4730
• Dorchester C-11: 617-343-4330
• South End D-4: 617-343-4250157
• Allston/Brighton D-14: 617-343-4260
• Roslindale/ West Roxbury E-5: 617-343-4560
• Jamaica Plain E-13: 617-343-5630
• Hyde Park E-18: 617-343-5600

Outside of Boston

Brookline police: 617-730-2222

• Brookline fire: 617-730-2263 or pull your nearest fire bo.

Cambridge police: 617-349-3300

Somerville police: 617-625-1600

Chelsea police: 617-884-2064

Winthrop police: 617-846-1212

Newton police: 617-796-2123

• Newton fire: 617-796-2200

Medford police: 781-395-1212

Arlington police: 781-643-1212

Belmont police: 617-484-1212

Waltham police: 781-893-3700

Watertown police: 617-972-6500

Dedham police: 781-326-1212

Quincy police: 617-479-1212

• Quincy fire: 617-376-1011

Braintree police: 781-794-8600

Weymouth: 781-335-1212 ext. 8

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