China on Monday reacted cautiously to Sri Lankan President Gotabaya Rajapaksa's request for Beijing's assistance in mitigating his country's deepening forex crisis and spiralling external debt amid criticism from some sectors that expensive joint Chinese investments that are not profitable are partly responsible for Sri Lanka's struggling economy. Beijing said, it will help Colombo to the best of its capacity after China's foreign minister Wang Yi returned after a series of diplomatic visits to the Maldives and Sri Lanka. <br />'' <br />''<span style="color: #222222;">Wang in his visit to Colombo on Sunday held talks with President Gotabaya Rajapaksa, his elder brother Mahinda Rajapaksa and Foreign Minister G L Peiris. China is seeking to deepen its ties with Sri Lanka making billions of dollars of investments in ports and infrastructure projects amid criticism of debt trap.</span><br />