US President Donald Trump extended his invitation to Rodrigo Duterte during a 'very friendly' phone call on 29 April.
The warning comes after a Filipino soldier was found decapitated by Abu Sayyaf militants.
UK trade minister came under fire for suggesting Britain and Duterte's Philippines could have "shared values".
Muamar Askali, alias Abu Rami, served as the militant group's spokesman and had appeared in several beheading videos.
Palm Sunday commemorates the day Christians believe Jesus entered Jerusalem and was welcomed as the messiah only to be crucified five days later.
Husayn Al-Dhafiri, a Kuwaiti national and his Syrian wife, Rahaf Zina, were arrested on 25 March.
Miners sift through hundreds of kilos of sand and clay, gathering roughly a quarter of a gram of gold dust.
Over 8,000 drug addicts and dealers have been killed since Duterte took office in June 2016
Gary Alejano has charged the Philippine president with corruption and 'betrayal of public trust'.
Reports suggest that all Malaysian nationals have been freed from the captivity of the Islamist group.
Aurelio Agacac, the victim was discovered in the remote village of Basakan.
The latest kidnapping took place hours after 2 Malaysian sailors were rescued from the Isis-linked group.
Dutch charity Terre De Hommes introduces 'Sweetie' program to scare off paedophiles.
Duterte told a cabinet meeting that Tobacco company Mighty Corporation attempted to bribe him 'with millions'.
Ronald dela Rosa said he hoped that this new campaign against drugs would be less bloody, if not bloodless.
More than 8,000 people have been killed since President Rodrigo Duterte declared a war on drugs.
The Filipino president said the move was down to 'a gain, a rise of drug activities by 20%'.
Scientists have since identified it as a dugong, but do not know why it washed ashore.
Retired policeman Arturo Lascanas said he was one of the ringleaders of the "death squad" that began operating when Rodrigo Duterte became mayor of the city in 1988.
Of the 25 crewmen on board the MV Giang Hai, 17 were rescued by the Filipinio Coast Guard and soldiers.
Lawyers say toddler suffered a permanent disability and seek $200k in damages
'Sextortion-selling firm' has dozens of computers, modems and CCTV monitors seized.