Hamas called for Egypt to loosen restrictions on the Gaza Strip on Tuesday, a delegate said, after officials from the Palestinian group traveled to Cairo seeking to mend strained relations.

Hamas called for Egypt to loosen restrictions on the Gaza Strip on Tuesday, a delegate said, after officials from the Palestinian group traveled to Cairo seeking to mend strained relations.

Senior official Khalil al-Haya said Hamas had asked Egypt to allow more traffic through the Rafah border crossing with the Gaza Strip, the enclave's only transit point not controlled by the Zionist entity.

Egypt has largely kept its border with Gaza closed since 2013 and has destroyed hundreds of Palestinian tunnels used to smuggle commercial goods, cash, people and, allegedly, weapons.

The Hamas interior ministry said 2015 was "the worst year for Rafah in recent years," when the border crossing was open for just 21 days in total.

Relations have soured between Hamas and Cairo since the 2013 overthrow of Egyptian president Mohammad Mursi, a member of the now-blacklisted Muslim Brotherhood movement.

Former army chief Abdel Fattah al-Sisi, who deposed Mursi, has since launched a blistering crackdown on Brotherhood supporters that has left hundreds of people dead and thousands jailed.

Tensions piqued this month when Egypt accused Hamas of being involved in the assassination of the country's top prosecutor, who was killed by a car bomb last year.

Hamas has denied the claim, and Haya said his movement "condemned political killings and condemned the assassination of Attorney General Hisham Barakat".

He insisted that Hamas refused "to interfere in Egyptian affairs".