Iranian security forces have arrested eight foreign suspects after detaining a gunman in the killing of two people at a Shiite Muslim shrine, authorities said on Monday.

The attack on the Shah Cheragh mausoleum in Shiraz, capital of Fars province in Iran's south, came less than a year after a mass shooting at the same site later claimed by the Islamic State (IS) group.

Iranian state media on Sunday reported that one person was killed and eight others were wounded.

A pair of Siberian tigers pant incessantly beside a pond at their zoo enclosure in the scorching summer heat of the Iraqi capital.

Temperatures on Monday breached 50 degrees Celsius (122 Fahrenheit) in Baghdad for the second day in a row -- making life outdoors unbearable for both humans and animals.

The orange, striped felines from far-eastern Russia are more suited to living "where temperatures drop to as low as minus 20 degrees" than in one of the hottest cities in the world, said Wassim Sarih, the veterinarian at Baghdad's only zoo.

Iranian security forces have arrested eight foreign suspects after detaining a gunman in the killing of one person at a Shiite Muslim shrine, state media reported on Monday.

The attack came less than a year after a mass shooting at the same holy site, the Shah Cheragh mausoleum in Shiraz, capital of Fars province in Iran's south.

"Eight people suspected of links with the terrorist attack... have been arrested," according to the judiciary's Mizan Online website, quoting Fars province chief justice Kazem Mousavi.

A photograph of Mourad Allafi hangs in the family farmhouse in western Libya three years after he was found in a mass grave. His father wants his killers dead.

Mohamad Allafi believes the prison terms of six years to life handed down by a military court in February to 30 people convicted of murder are not enough.

And relatives of the hundreds of others who were tortured, killed and dumped in row upon row of mass graves in Tarhuna agree with him.

Iraqi merchant Mohamed has never seen such a grim tourist season: years of drought have shrunken the majestic Lake Habbaniyah, keeping away the holidaymakers who once flocked there during summer.

"The last two years, there was some activity, but now there's no more water," said 35-year-old Mohamed, asking to be identified by his first name only.

He laid out inflatable water floats, nets and shirts in front of his lakeside shop, but expected few if any customers.

Western naval forces operating in the Gulf have warned ships sailing in the strategic Strait of Hormuz against approaching Iranian waters to avoid the risk of seizure.

The warnings issued on Saturday and Sunday follow a week that saw the United States boost its military presence in the region, and an agreement between Washington and Tehran that has raised hopes of reducing tensions between the adversaries.

A shooting Sunday at a Shiite Muslim shrine in Iran's south killed at least one person and wounded eight others, state media reported, revising down a previous toll of four fatalities.

The attack comes less than a year after a similar one on the same holy site, the Shah Cheragh mausoleum in the Fars province capital Shiraz.

"One person has been killed and eight others wounded in the attack," official news agency IRNA reported, quoting deputy Fars governor Esmail Ghezel Sofla.

Temperatures in Morocco have for the first time on record topped 50 degrees Celsius (120 Fahrenheit), the North African country's meteorological service said Sunday amid a scorching heatwave.

The meteorological station in the southern coastal city of Agadir recorded on Friday the new national record of 50.4C, said the General Directorate of Meteorology.

Morocco has experienced a series of heatwaves over the summer with record-breaking temperatures.

Neymar is "probably leaving" Paris Saint-Germain, with an offer from Saudi Arabia said to be on the table, a source close to the negotiations told AFP on Sunday.

The Brazil international joined the French champions for a record 220 million euros ($241m) from Barcelona in 2017.

But the 31-year-old forward was missing from PSG's season-opener on Saturday, and "no longer figures in the club or manager's plans", the source stated.

The official line on the Brazilian striker's absence from the goalless draw with Lorient was that he was suffering from a "viral syndrome".

Members of Israel's Arab minority fear they will bear the brunt of the hard-right government's judicial overhaul, but have remained largely on the margins of a raging debate over the sweeping changes.

Israelis have rallied weekly since the controversial reform package was announced in January by Prime Minister Benjamin Netanyahu's ruling coalition, dubbed "the worst ever" by Samira Kanaan Khalaylah, 57, who lives in the northern Arab town of Majd al-Krum.