Rangers have warned fans that the use of pyrotechnics at matches “must stop” after they were among four clubs punished by the SPFL over supporter behaviour.

The league body confirmed action had been taken against the Ibrox club, Motherwell, Hibernian and Aberdeen over a number of incidents, including two games where children were injured after flares were lit.

Rangers and Motherwell were both hit with a reduction to their allocation for away games in February of 50 tickets each, with a warning that the reduction would be doubled for future games in the event of further rule breaches. Both clubs will have to pay the host teams for the games, Hibernian and Dundee, the cost of the tickets, which is estimated at around £1,500-£2,000 per club.

Aberdeen and Hibernian were handed a suspended sanction, with a 50-ticket allocation reduction to be applied in the case of any further pyro use this year.

The SPFL said that each of the games it investigated – Dundee v Aberdeen, Falkirk v Motherwell, Motherwell v Hibernian, Kilmarnock v Rangers and Rangers v Motherwell – had involved “large-scale and organised” use of illegal pyrotechnics, which “caused a health and safety risk to fellow supporters, players and those working at...