A group of parents whose children were killed in the Germanwings plane crash have released a scathing letter to Lufthansa’s chief executive, accusing him of ignoring their needs and feelings and insulting them with his company’s compensation offer.

Lufthansa is offering immediate aid of up to €50,000 (£36,500) per passenger to relatives of the Germanwings crash that killed 150 people.

Lufthansa chief executive Carsten Spohr said the German airline needs a deeper overhaul after acknowledging the most expansive saving plan to date was swept away by higher costs and falling ticket prices.