CAIRO (AP) — Egyptian officials said Tuesday a fire that engulfed a main telecom company building in downtown Cairo a day earlier left four people dead and over two dozen injured.

A blaze at a key downtown Cairo telephone exchange left at least four people dead and another 27 injured, cutting off network services and forcing the local stock exchange to cancel Tuesday’s trading session.

Four workers were killed and at least 22 others were injured in a fire that broke out on Monday at a key data centre in Cairo, Hossam Abdel Ghaffar, the spokesperson at Egypt’s Health Ministry, told Reuters on Tuesday.