Travelers heading to Cambodia are being urged to “exercise increased caution” under a recently updated U.S. travel advisory that highlights risks ranging from street crime in Phnom Penh to unrest along the Thailand border and the lingering danger of landmines and unexploded ordnance in multiple tourist-adjacent provinces.

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Cambodia Travel Advisory: Visitors Urged To Exercise Increased Caution

What changed in the latest advisory

Publicly available information on the U.S. Department of State’s travel advisory system shows Cambodia is listed at Level 2 (Exercise increased caution), with the most recent issuance dated September 15, 2026. The advisory flags crime, unrest, and unexploded ordnance as the primary risk drivers and notes that some areas carry higher risk than the national baseline.

Within the same guidance, the State Department designates a Level 4 “Do not travel” zone along the Cambodian-Thai border, describing ongoing tensions and warning against unessential travel within 50 kilometers of the border. The advisory also calls out Phnom Penh for elevated crime concerns and identifies several provinces where unexploded ordnance remains a persistent hazard.

The update arrives as other government travel portals across the region have recently refreshed border-area warnings in connected sections of their own country guidance, a reminder that travelers can see restrictions and distances vary by issuing government even when the underlying concern is similar.

Border-area risk: what travelers should know

For many visitors, Cambodia’s busiest gateways are Phnom Penh and Siem Reap, and most itineraries never approach the Thai border. Still, the U.S. advisory’s strongest warning is tied to border-adjacent areas, urging travelers to avoid travel within 50 kilometers of the Cambodia-Thailand border due to ongoing tensions and the risk of armed conflict.

Published coverage and government advisories from other countries describe active caution zones on the Thai side as well. Some guidance frames the affected band as within 10 kilometers of parts of the frontier, while other advisories set wider buffers, including 20 kilometers or 50 kilometers depending on the authority issuing the notice.

For travelers using overland routes, the practical takeaway is to verify which crossings are open, confirm routings with reputable operators, and avoid detours into remote border stretches. Distances can be easy to misjudge when following mapping apps, particularly in rural areas where alternate roads can shift a route closer to a restricted zone than intended.

City and tourist-zone safety: crime and scams

The updated U.S. advisory specifically highlights Phnom Penh for crime-related caution. In its public guidance, it notes frequent street crime such as phone and bag snatchings in areas where foreigners gather, with an added warning not to physically resist robbery attempts because injuries can occur.

Separate security reporting and published coverage around Cambodia in recent years has also pointed to organized scam activity in the broader region, including online scam compounds that have been the subject of law enforcement attention. For travelers, this risk most often intersects with tourism through fraudulent job approaches, unsolicited investment pitches, and payment or card-related fraud attempts rather than typical sightseeing.

Visitors can reduce exposure by keeping phones secured away from the street side when walking near traffic, using ride-hailing or hotel-arranged transport late at night, and avoiding high-value jewelry in crowded areas. When withdrawing cash, selecting well-lit ATMs inside banks or major hotels can also reduce the likelihood of opportunistic theft.

Unexploded ordnance: where it’s still a concern

One of the most Cambodia-specific hazards in the advisory is unexploded ordnance and landmines, which can remain in remote areas decades after conflict. The U.S. guidance calls for increased caution in several provinces due to unexploded ordnance, including Battambang, Banteay Meanchey, Pursat, Siem Reap, Pailin, Kampong Thom, and Preah Vihear.

That list matters for travelers because it overlaps with popular routes beyond the biggest city centers, including areas tied to temple visits, countryside excursions, and overland travel between major destinations. While many well-traveled sites are managed and commonly visited, risk increases when people leave established paths, explore fields or forested areas, or venture onto unmarked trails.

The advisory’s practical guidance is straightforward: do not touch unknown metal objects and avoid wandering off marked roads and trails in rural areas. Using local guides for treks and countryside activities can add an extra layer of route awareness, particularly in less-developed areas where informal paths cut across fields and scrubland.

Planning tips for travelers: documentation, health, and insurance

Travel advisories are not blanket prohibitions, but they are designed to shape planning. For Cambodia, the current guidance points travelers toward careful trip preparation: reviewing entry and exit requirements, understanding local laws, and staying alert to location-specific warnings that can change quickly when unrest or security incidents flare.

Health and emergency planning can also be a differentiator in destinations where advanced care may be limited outside major hubs. Travelers often treat medical evacuation coverage as optional, but Cambodia’s risk profile makes comprehensive travel insurance more relevant, particularly for those planning motorbike rentals, long-distance road travel, or rural excursions.

Finally, travelers can improve resilience by sharing an itinerary with someone at home, keeping digital and physical copies of key documents, and enrolling in government traveler notification programs where available. Those steps do not eliminate risk, but they can speed up assistance and communication if travel plans are disrupted by security events, accidents, or sudden route restrictions.