The coronavirus crisis has left Italy's northern economic powerhouse a disaster zone and raised awkward questions for far-right opposition leader Matteo Salvini's League party, which has dominated the region's politics for years.
Unions in Italy's Lombardy region announced strikes on Monday to protect the health of their workers, saying a government decree temporarily shutting businesses due to the coronavirus emergency contained too many loopholes and exceptions.
It is the highest daily increase since the outbreak emerged.
The association warned that failure to stop flights from Northern Italy would see MAM taking "whatever measure necessary to protect its members and the general public."
The decree includes the power to impose fines on anyone caught entering or leaving Lombardy until 3 April. It also provides for the banning of all public events, closing cinemas, theatres, gyms, discos and pubs. Funerals and weddings will also be prohibited and leave for healthcare workers has been cancelled.