India, Jan. 28 -- Five Indian fishermen were injured, two of them seriously, when the Sri Lankan Navy opened fire while apprehending a group of fishermen early on Tuesday, prompting the government to summon the most senior Sri Lankan diplomat in New Delhi to register a strong protest.

The incident occurred when Sri Lankan naval personnel were apprehending 13 Indian fishermen near Delft Island in the Palk Strait, the external affairs ministry said. It came a little more than a month after the two sides agreed during Sri Lankan President Anura Kumara Dissanayake visit to India last December to avoid "aggressive behaviour or violence" while dealing with fishermen who transgress the maritime boundary.

"Out of the 13 fishermen who were on bo...