VISAKHAPATNAM: At least 10 persons, including two senior citizens and an 8-year-old girl, died and over 5,000 people fell sick after an alleged gas leak from a chemical plant in Vizag on Thursday early morning as per a report. As per reports, the leakage happened around 3am at LG Polymers industry at RR Venkatapuram near Naiduthota area close to Gopalapatnam.