Penalties include fines and imprisonment
Smoking is now banned in public places in the state of Lagos under legislation that came into effect on 20 January.
The bill prohibits smoking in libraries, museums, public toilets, schools, hospitals, day care clinics and restaurants, as well as on public transport.
The new law provides that "No Smoking" signs must be displayed prominently in all public premises.
The penalties for breaking the law include a N10,000 fine or imprisonment for up to three months.
Owners caught not complying with the legislation risk a fine of N100,000 or six months in jail, while the law also prohibits smoking in front of children.