The world’s biggest smartphone maker, Samsung Electronics, reported first-quarter net profits down three percent on Wednesday, as the coronavirus pandemic dampened consumer demand, but warned of further falls to come.

Net profits in the January-to-March period were 4.88 trillion won ($4 billion), down 3.1 percent from a year earlier, the company said in a statement.

The first-quarter performance was “partially due to effects of COVID-19”, Samsung said in a statement.

And it expects weaker results in the April-June period, it said, adding that “uncertainties driven by COVID-19 will persist” into the second half.