Portugal's economy did not grow or contract quarter-on-quarter in April-June after a 1.6% growth registered in the previous three months, as net exports had a negative contribution to gross domestic product, official data showed on Monday.

The National Statistics Institute (INE) also said in its flash estimate GDP expanded 2.3% from a year earlier after registering 2.5% annual growth in the January-March.

Economy Minister Antonio Costa Silva said in June Portugal was showing resilience to the euro zone's slowdown and could grow as much as 3% this year, faster than the 1.8% government forecast. That would still be much more modest than last year's 6.7%, which was the strongest expansion in 35 years. (Reporting by Andrei Khalip)