"Twenty tunnels are partially back to work since Sunday out of the 250 tunnels still closed because of Egyptian security measures on borders," a source in the Hamas borders and tunnels authority told Anadolu Agency.
The operational tunnels are being used to smuggle food, fuel and construction materials into Gaza.
About 40 to 50 trucks of cement are smuggled through the tunnels per day, down from 300 to 400 trucks daily.
The source said about 3 million litres of fuel were smuggled through the tunnels in the past five days.
Egypt has launched a security crackdown in Sinai in the run up to mass protests that led to the army's removal of elected president Mohammad Morsi.
The security crackdown has caused a fuel shortage in Gaza and doubled the prices of building materials.
An owner of a fuel-smuggling tunnel says the army reinforcements are disrupting the smuggling operations through tunnels.
"The smuggling operations are going slowly and at high risks because of the big security reinforcements at Gaza borders," he told AA.
He said army troops destroyed four fuel pumps and a tanker inside a smuggling tunnel on Friday.
But he said eight tunnels now operate to smuggle construction materials into Gaza, out of 50 tunnels.
"We are now able to smuggle 400 tons and cement and 400 tons of gravel, from more than 2,000 tons in the past," he said.
Another tunnel owner agrees: "Smuggling is being done with great difficulty and at high risks to the life of workers because of army attacks on the tunnels".
Underground tunnels are a lifeline for the Palestinians living in Gaza, which has been under an Israeli blockade since 2006.
"We are investigating into the matter to make sure that the video is authentic and the victims are Ethiopians," Redwan Hussein, Minister-in-Charge of Government Communications Affairs Office, told.
The UN envoy urged Libyan factions to work "for agreeing on a final wording for the UN proposal,"
Compensation talks with Lufthansa are expected to start soon and the lawyer, Elmar Giemulla, he hoped the company would agree to pay damages commensurate with the emotional harm caused by the crash.
As many as 700 people were feared dead after a fishing boat packed with migrants capsized off the Libyan coast overnight.
Son Chhay, a Buddhist member of Parliament for the Cambodia National Rescue Party, has claimed that those with extremist views could “stir up” tensions
11 Palestinian ministers have entered the Gaza Strip through the Israeli-controlled Erez border crossing for a one-week stay aimed at discussing the Gaza Strip's most pressing problems
Russian Minister for Sport Vitaly Mutko said the centres would act as warm weather training complexes for elite Russian athletes.
EU foreign policy chief urged after one of the worst migrant boat disastersafter.
A video released by ISIL armed group purportedly shows the execution of dozens of Ethiopian Christians by its affiliates in two separate areas of Libya.
Questions raised of northeast Australian police for abandoning investigation into anti-Muslim hate mail.
The eyewitnesses said the device went off near a headquarters of UNRWA in western Gaza City
In capital Khartoum, al-Bashir scored significantly higher than his competitors for the country's highest office, according to unofficial results.
Addressing the opening session of the forum, Ethiopian Prime Minister Hailemariam Desalegn called for eradicating terrorism and extremism in the African continent.
The settlers toured the complex, passing through Al-Qibali and Dome of the Rock mosques before leaving from Al-Silsila Gate
The United Nations said on Sunday, more than 90,000 people fleeing violence in Iraq's Anbar province
Twenty eight people were rescued in the incident, which happened in an area just off Libyan waters, 120 miles south of the southern Italian island of Lampedusa