Nomad Foods, the world's largest branded frozen fish supplier, reported a 4.4 percent drop in first-quarter earnings, as the Russian invasion of Ukraine created "dislocations" across the group's supply chains.

But the parent of the Birds Eye, Iglo and Findus brands sought to soothe investor fears, saying it still expects to post adjusted double-digit earnings per share growth this year.

Nomad reported adjusted earnings before interest, tax, depreciation and amortization (EBITDA) of €132 million ($139 million) for the quarter, while revenue rose 3.6