A major fire broke out at a plastic manufacturing unit in Manvilla near Thiruvananthapuram on Wednesday night. There was, however, no casualty, police said, citing preliminary reports.

At least 30 fire tenders were at the spot trying to put out the blaze, which broke out around 7 pm at the plastic factory.

Workers, who were in the unit, managed to rush out as soon as the fire broke out, some of the workers said.

Visuals aired by TV channels showed thick smoke billowing out of the plastic factory as fire tenders are fighting the blaze for four hours.

Two persons, who felt uneasy after inhaling the fumes, were hospitalised. People living nearby were evacuated.

Although the fire has been contained, fire forces are reportedly still on alert as the substances are highly combustible.

According to reports, a minor fire had broken out in the same factory three days back, which was immediately doused by the workers with fire-extinguishers.

(With PTI inputs)